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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f519bb080ba97e5f72d56a8f1a7c5b342344b3b679dbefd1e5fc63ee1ff2e2. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17efd28f-4be4-475e-bbd2-3e048cfc524d.json and https://artists.proofprofile.net/proofs/artist/17efd28f-4be4-475e-bbd2-3e048cfc524d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5aed7feef34784de2500c31babac45c9bfa9ae397054d1021fe7492dbb13eb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKMFA1900603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7743bb05c4456d60efeb6467eef0de9a514fd51e7904f8f02f816926c9d7604. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKMFA1900604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de23af53ac62c812f9c5387443aba27661e50763e054af3bbdb49b3f3da72dd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKMFA1900605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d46c2b4285672128f16662af35b413e43852b8189acb55acfc08399fbc9958b. 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/DKMFA1900606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31e9cb942903abddef050f39e2dcc3df02883dc8796628950bbdf6a13878863. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKMFA1900608.
Verdens skæve gang (Oehlenschläger og videre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8f4d4d835f034514f39a230f3dbcba2cf66082b910d4e24ad78c0642399d69. 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/DKMFA1900610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf276e934e826250ac35a625326dcc9e887b3f485da7e02f3eb4eb4fc46e43310. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKMFA1900611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c933e5c2e7ed3681b9fd2f258a3bb758fac365839c777017be97bf1374e3d3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKMFA1900613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f2b9c277d4a0c2bf857df8d61ee688f62fa76b0b7e6e810b8cf9a48076df45. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DKMFA1900601.
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 0x48cd52543c66f2da9d78cf277c4e69b4d66f361e3ae9ff39780f6e7ac759fbdd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DKMFA1900602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4581ea5e27da429fd70322913a75c626e56261c44e3876b944a3c40f7b1e5fe. 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/DKMFA1900607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e9d1e5a10e8141278acbe0f9defd342b49fd1bce5b3e5e1fb8beb0ef9afa10. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKBR20900702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f645113042c2a2b79f92015c3638ae1374c5c0785a3135e4e4756285906c4db. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKBR20900704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893bf96ec413dc8406d1c1a15970a7ea6509f0c4e121af5b2cc3092c47457295. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKBR20900708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644c5109112c5b65d639c2da1fbb3c6f048ba7da5e6209adcb6f236473f8322c. 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/DKBR20900709.
Her Er Et Budskab Baggrunden Til En Succes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c705fa8719d4193b9d5994adc3f6a1b063336c74d4ff1b267c3144e3be117cc. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DKBR20900715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513ba8d0c70fa87ab51e4a521a8bf9d4ec20254bc1abcb728a590cc79006d606. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKBR20900716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc6f59fc4a79e947a497db519cf3e33882e521b8750650bc3dea18202c449a2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DKBR20900712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cfbc65a57552b9538a8cd9ce25d2b70fddd35cff2051e1d0062d890c6afa39. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/DKBR20900701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868e2e05cb3c48fab0c5d24e995d39d195dc92b5aeb236fa3b267b009e404e8c. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DKBR20900703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526b0fc59576cdfebb5ac8a5fd1a55c228d5728a6ec45b84f7f2a88ee55979fd. 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/DKBR20900706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddd860399bea5217ddb221378529f342b0efaed2678c45a6a4362daea986836. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DKBR20900707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9da44bfac6a315af12afe41cb47f74a68707614d3ea23efa60a42b06622278. 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/DKBR20900710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd186c68c35f3427f7ee5f219e427b0dd9fefd51caf519e64a7cbd059048af326. 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/DKBR20900711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeceb2d9b35add199636146c011f873431928362b08c4e9292b049ad1433eb7. 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/DKBR20900714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6289eafcffb9913f80f136eb3642f07a7f0c6ac1481bc31dab50404ff692f28. 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/DKBR20901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc4a73facde5f69b7c6bf86d6a64a8501e77b304b44d4d7d7cae667edc7b8c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKBR20901002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d77a863a31354cca6e0fa7b5dcb43a2ee31ec455b44fa4c12c96f20efa8693. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKBR20901003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2222ac3baa7ac02b671cb8e48e0f4994be3535b49dd1ebaf013ee2a7c46ddd. 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/DKBR20901007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f23bb52c00b4ed7f19f58cced374095b4737c2e2df17f6601d157c4a5b343f6. 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/DKBR20901010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3349f9fdefe0f9fac4dc565cc82e61d82bf9ee9464853e68bfc6c477bc2d62. 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/DKBR20901011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a6b2d47aeec556f575040ce3f31e86acacfbd3e5c39dec7af93a0b87ed0ed3. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DKBR20901004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5873f2b52145a018294bb13c721fdd0c6075b33c3a0d01dcc0a288f94694dc47. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/DKBR20901005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069fe4d481b105eb27a34b1d45b37ee941dad810642c07c6ef8fb4741a03a345. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DKBR20901006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d5080a5f487aed0bbcf70bff1e093c7cd752f654bb7eac507edaf516e35cac. 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/DKBR20901008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7137b0f20e4c4b181ab47138ba082d0509ced3a6a176186357cd64a24b7388f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DKBR20901009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a02e7ebef2954bb4a937d0ace8163e01d8a9b2883ec05caf8f8f487cc96367. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DKBR20901012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2793b6380df1003698487ee4623bbbe3ebefe944fcdf6fc04ff2bdfdbb918aa2. 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/DKBR20901013.