Atli Heimir Sveinsson (21 September 1938 – 20 April 2019) was an Icelandic composer. Atli Heimir was born in Reykjavík, Iceland and started piano lessons at the age of 10. He studied piano with Rögnv
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce3eb8d841b50db03a15a3218b3c559cc02011025eea1144c4dc4d00ac59701. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a224b934-8f13-4b2b-ad72-512f41b50cb5.json and https://artists.proofprofile.net/proofs/artist/a224b934-8f13-4b2b-ad72-512f41b50cb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bcca08ad851c270eaeeeeb9bce94b70d5f4f02bfa39240af82bf633fd1c5a5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISZ100000619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46ce3cc35b43d82d897f1ae54120d45f1ed8351805c64a62c793526f790ec8a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf763346973f84f93460d5458155effc52ec74db8509d4b7c834c35a7f939965c. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932494e4dd13bf73a8213f895e6dcb1f00c4da7f3228d472ac430c700c581459. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011aece049c39cb8ccd3ef0363cc9223b1686814dca6c68416a3a1f897ea0f3b. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9281282acd4811da28745988cc756541ace1a509b1e111e609bfe5dea82e9c. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e414e255875b555e7dfb2e0d5cadc39505774293a1b55954b8a8565c28b6a51. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e6ee3c82e87ee24cf6d3b05efdaa17540c158909361b790bc1413543223a5e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d8919a99f9cafd30aaf40e2d37bef6074bb578fa5b236a5d93691fccc675f5. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b85c843f2258d90dd4e41110396eee134938c28ea13aeb876ed19214e97d77. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389d4500af30b4c4347d3d46201217c81df214cdcbe511964811e5ca17b4e824. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04465177150370426070e1b66722e040b86576f5412efc7282c7ab16fd0b4e6. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1d0b5d349f9c6e58f01314e8585bef421e8ce0ac0df48acb75dd61e0879e74. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2ccffdf78767c32e97745173f6acf55cc332e25ed21c52e6bdd897183e7f37. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32baf57a3b85cd2ed9a7345b357d2f4257d2e7a77b963943bcf0ad1a235015d0. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb78027762bbca90951912606cf895619a0005186a2480e90569ad0798982861. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ec92aba143f9c8c06fc73f939e2accb506976fe7ff1c44fd083fe6c8452e91. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf7d4e3c2f87249c78901405fecc6c3d09f622d728e9712921f5bed597bca38. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167170.
Fljótavik (Arr. for Violin and String Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341aea37ab5eeb175b7b08471ecbe786f04554c018ec309ca9ed12bcd16ee2a0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2167180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47479253f9fa724d60d01cfc4ad832febdc9dd590034fd4b68afba5143a9d38. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG90803701.
Drei sechsstimmige Chöre, Op. 39: No. 2 Abendlied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dd988bab501bc20c5776728c34f88cc4b63785b7efe596e4a45452a56a0e54. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG90803703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3035ba003fd2dbd283a9c3399d1da8bcbd2ee57843a86ef6572f2401e269d20f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG90803704.
We know not where the dragons fly (Bu Zhi Long Qu Chu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7664b4d353fa7c75e941e14a4ccecf3db74e18a18c1aa6503b2f42fb528d5af0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG90803706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c76438ab600d70a2dc4ea2c8dc8c193d61b9c9f0b3264afd3c97d7b472f1d6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG90803708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb36b1490b5349ca077526956b372b30ca84855aea81445255ce292980c7bb0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG90803709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641ea5295260c09568efb862ee95fc2f3384e7d969a6a3796607960f1a9a407b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG90803711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2385b4b945850a6e538fa933f88fda746b55887a3d1c7dbb9909dbf005035d44. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG90803713.
Sveinsson: Timinn og vatnið (Time and Water)
Lieder ohne Worte (Songs without Words), Book 5, Op. 62: Fruhlingslied, Op. 62, No. 6 [arr. For flute]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da5f489ba27ae4df4659587ddb63b78a7920df93dfd9c8f8cfa2ff45f359e7b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAED8650020.
String Quartet in F Major, Op. 3, No. 5, Hob. III:17, "Serenade": String Quartet in F Major, Op. 3/5, Hob.III:17, "Serenade" (attrib. Hoffstetter): II. — [Attrib. Haydn]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ffbec2e5613cdbdb58846964d2b0fe69836ebf5bb8b037e045d01202913bd2. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAED8650030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa8018baf9e8cbefbe097fc3d1d4b8020b9e9b15783fc9bea9694944d499950. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAED8650050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fcc014806edc64cf314c5987a9a8a98f58fff223353c82eca3c5fb5a6a3f74. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAED8650070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3dca900c8f1314a58716b71e7e2d1340f28534ff817330cc1bbb3db62cc59da. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAED8650080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d95cac5bca452d112946e7a4f3223817fc95f1f646dbbc3239403dad993684f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAED8650120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c95589db3ca3c727291436d3b366af167d67b528a8a8905acce96156ff80814. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE4011400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f122108ebbbf0a177e43186d5ab000e9ddd459e1a672351e64720008f2e404. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISZ100203511.
Jól í Hallgrímskirkju (Christmas in Hallgrímskirkja)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e8825fc154a11f4eef137f0a7dca554796f53b9bae158de17f0505ae9930a5. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISV441864503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8aaadc2d239273330b25ca99560800dd5152d99481dd60a576b5bb20403992. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA109200803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002c4671de1b5d9a70311dccd49560f9f5885d13d088a14b313da03b1a274687. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA109200806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc53a4dbc18a23125aa2b46b49e5e220a781df41df9cbcee233ebef83cd33b38. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA109200813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157ba9dafde9d410cfb6d0fe8d0fba775ee76e6a9c8a78d7b90ebec95453b9fa. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA109200821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf468a484b3271a6e1e8600290d9384c48b8e269eb1a55e74fccf269d8f5d668a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISC109800501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb8129a6a7e269f6a5b1b3e568eb9b8682346697fc1c72785df099518a669ee. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISC109800536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a575e0ca6501be822c47421d6d63450480421a60a1e34a3b68bbd677db62aa. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISC109800610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df42cd0cfe241b37342bb0722e701030b788a023604ecf99ee4a83f62c923e5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISI109901033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752d1eeaa5eaf3ab41fbf72e243caacb9622fab75097bf988780fd9215bc2221. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE4011400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5b6eb1ec8da537619540097762df5384592903bd76dd4435839469fc4f8734. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE4011400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160368014a55a17263372615080edbc81fc83d6db83a2c876b795a54eb28d285. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE4011400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafdaf39f875cba8242e373d66acf107374be0cfec32cc15176d44386db01b22. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE4011400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d50c4a9dd54661139b707aa527d3ca03e13e955db0466636c09cedbf6d84412. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE4011400117.
O, Gud vors lands (the Icelandic National Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185429571d266626498453d4aac9e3ba11712b02374d9ebe245e3a276f93e70a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEC9339030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b1eae22f74fe11ef7a6fd98d4470dc91bd94be80afd4e65b33f31264de7d26. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEC9339040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df5b2b060ab3d0657702bb3d866162e0e27cefd28e00155e1cad4cdcbeefd7e. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEC9339090.
Hun var thad allt (She was all you ever did Love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fae716091a614ca7c9f3ddba3572d5b85f4e855d5ce3120c741e4cef831686e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEC9339110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef92a08908fcfb361bdd350592e28ddcd571b479d6897927013afcc699acf4d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEC9339140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaabc90ca81f5e364d416f955a4909a4e6810bfd0115e097b612bf7619a71e4f. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72203199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b6ddaa5759854aec0f855a2b134c1f80c4a12f563c754ef0333981aa80ef4e. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72203207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa945cb29ca728c064ebafbefbfc526b0207cb5a00e9add481bbbef4893c2fc9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72203212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2594767992718ba0d3689cf882d59867ca43497163fda976698ebd68c4fc4874. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISC100200505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75719487ded4bd01e7e85dc9ca5150b6021443b11a052169bdc9d6d21e56b03a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISC100200506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a549528b98a9dc2fd286e1f83ef9594b6eb85b612c2e273d4f88fd80b00a8f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISC100200511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8bf65089bd6797bc78af6a6aa51104f26a4e789c30aabd9fa5744e819c4e2d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISC100200521.
Icelandic Folk Songs: I. Iceland, Land of Prosperity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a9a09d0e6d59f82fe9d5d83fab69cd8f35a5da40af38ac3b90ffbd06475f5c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1512230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bbb44ac8a6fc21fbe99acde00c9356f6d45cab4892af32b76ba3fe9acc0f04. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISZRU1006498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1f1b8054f8eaa98dce91e0f44011a7b305201e889ec3f83d16c1f1a7c7c4b9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISZRU1006502.
Piano Music - Sigurbjornsson, T. / Ingolfsson, A. / Tomasson, H. / Sveinsson, A. / Urbancic, V. / Vidar, J. / Hallgrimsson, H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fa5381f46e582e96c72e0e976673f31a37c82c0b2abaa022997ca5b3fae1ef. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU920881303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b90cac2471790ee21e378d16454ca09bc8801d810d31aca104ffb076ba9083. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU920881306.
Gleðileg jól! - Jólalög Ríkisútvarpsins sungin af Hamrahlíðarkórnum (Live)
Sónata nr. 5 í C-dúr (Baldasarre Galuppi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3659680645daa6ee4cc7617f38be235c933cc3953f4c43b35c7b78dbc177bc23. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISV442104001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056597d0954fc35a14ee42c36091d411f01c6ba58d5dc90b994b0cb86bbc8965. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR42290905.
Komdu nú að kveðast á (Make Verses, Maestro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c66f582ab8e3d0c5fd33a6aeee3943f8bc095fe50e63e163b71bc3dab50ce1f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBTF2000122.
Vísur Vatnsenda-Rósu (Vatnsenda-Rósa´s Verses)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d3961829ebdd7ae162d9604b1d03c35b6a3abbaa2d3d07aef0d2b79be6c686. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBTF2000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f195c68c63c5d5a07314af871f902821a19c59b80bb329f777acbf95328a6ab. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBTF2000127.
Haustvísur til Máriú (Autumn Verses to the Virgin Mary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e04d12515e0f030c1122dd92c08957b0d37382da1bc858026e8c19e67fa2c4f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBTF2000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93345daf965a3ba6c50b12b020aacc9f38cd32e814b82bb6fba2838333cc3210. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBTF2000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee483c99096cf4121ade3c1ce0462badda68e0d74e77abc8be081413977fb3e2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBTF2000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17940e515e4b386dbd4fe333cec3f369fe04278ea5a8ac6b911fd07f713defb. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBTF2000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a060816aace1c529498767595ed74cf3ff776030a3231bc7045c213b45f3d52. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBTF2000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c10c7d968b969b878953559bf3f2490e6f86cde5adf8852f1a7908d45bf020a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA110201260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b00287bcba074d894c298651d9e240c43ed4d3bb7ec3b1b19d49f4d68a685a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISV440806804.
Together in Music: Icelandic & Polish Flute Music
Gothenburg University School of Music Chamber Choir
Mouyayoum: Vocal Minimalism from Scandinavia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7766d5928a1bb116e62814afa40aabb2fffdd4ed2053957a514043a3c34dfd3d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBAC9413020.