thumb|200px|A 1951 Berna trolleybus in service in Biel/Bienne in 1979 Berna was a Swiss manufacturer of buses, trolleybuses and trucks, which later also specialized in surface metallurgical treatments
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 0x976682b59e5a047f2094705012e9c20e549feb0b012a88f705db641c8ccb6d8f. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fdc8e53-db5b-4ee0-a68f-a5062d44520a.json and https://artists.proofprofile.net/proofs/artist/3fdc8e53-db5b-4ee0-a68f-a5062d44520a.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 0x51d2d106c25715c36ff4cd82929853bbc1fb2e7f2fe94d130168d4069bc56f76. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/SE6I31998792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253e183ea1bdfddedf02b8a4a58317e956c41041ff9fbf457196bd6710917bfe. 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/SE6I31998803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e5f056dfa8bc649c915be26e328141c241ede71821783427e69ae91d71e0d4. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/SE6I31998807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3923943062cf7a39a6b07f2ee888fce5bb5d95457a46b4fbb2c6d7e7daaee7fe. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/AEA0D1806617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc859a04de33cea0352dd1104dba7bd42487ed88c0359cd9d301d6162edfe3211. 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/AEA0D1806618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8c3c59e247b39a23c423e2dd79f63287c63da86cd6c15bba57c05d6d0f3ee8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AEA0D1806619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c52ae5729ea25f0b80413721f39e4cbbac4533a665c4abde75cd79246d6714. 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/AEA0D1806620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d6ea7cf7aa8c5edda1092b5d5e6699294386d4482c77d447d716090ac7bd14. 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/AEA0D1806621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabce5de23e666771828d72f5a629ee260cfee4ff5b59b2045fe5483ba90968ca. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/AEA0D1806622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06804c6f75092adae8879c5e635b619f1af893ac706911b9e1b84e55fb87333a. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AEA0D1806623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929627f88b815147f726e0823f54374301275ea4496e404712840ecd110dde6e. 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/AEA0D1806624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe546b5fc02b5d2c7936b954a39a38e5fa1271e261278bbe1db9911e94477e0ff. 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/AEA0D1806625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113da9aa799d810157a8125ba8bd6faf33543961a7565bfbeca6bd1639966dad. 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/AEA0D1806626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a18072ad23b330f2a3c1a97c63cbe39ab3532882375eda8f1c27f1608f01521. 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/UYB141824101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39de4bc1bc4c9086dfa8f084668cd2a813b657a400b227d94c338a725c22dcd1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UYB141723001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb415e290b685c2ca052ebf7018deb983ef57837fa6cdd37bf1e9644479d046d6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UYB141824102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17c9fa6495fe54ff20e4f8533b799b1dd92298a83217f441315393594f6e048. 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/UYB141824103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070cc88ae55878570716226a78f0e79ebee0132555a9aa9b028680f2fd3955b7. 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/UYB141824104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51d0ee9b74a94a784df527f4501a46d5e14f1cceadf1b7bc029a95cbb150f71. 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/UYB141824105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67de43078c1749193485edad9a187d9d51007aaaddaf2363a19f3201a530c784. 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/UYB141824106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13b3f48bcbb855a14aa59071869b1e8281c19d2a2c9212ef560591770a29fcc. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/UYB141824107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd6cb6eeff6028bde3856ea67144a5713320ff682e90acc2c4c56e87f8751ae. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/UYB141824108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3894272707675f112f6871cf806e2d09635309471a691ff413fd6933434ae9. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/UYB141824109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0008d286866d6e679484454d2e12a84fbc089c3c22952bcf7105b8d99118a13. 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/UYB141824110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b739c27c9e96e33d22ae1b6009b41f25972935fd9b2537ee1890548f96ca2d1. 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/UYB141824111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6e93f6b2c1ab9de48faafea7379bb945a85a781cfd90ece2dbb267d8871d77. 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/UYB141824112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2bac1ec9c133a0e04a15a5595a4f74f895959e3f863a278e263bebca04451e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCACS1636881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043936298e166571992d65d8bffa1d44109a5f65a9d9368d6e356ac05e765cdb. 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/TCACS1636883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74959ede20865c836d09bd50dea7c81a934b45fb0e073de4db6664ed02113bc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACS1636884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2478b81398be49cbc4c438477ce04713cc6feb28c363a266ff4a7f462c0ffa1. 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/TCACS1636885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3dabde6e6416220b859b47ffe622bdeaf7495f9f623847a41cff3c5f757991. 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/TCACS1636886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb234158b9d83afc29ca17d1dc483cdbdf2ffa12365943717218948274982ee6. 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/TCACS1636887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb7fd3ebe43506a7b2d3af1e756a76b790e42a47315c389e741377c24630fa0. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/TCACS1636888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c894d9410e7854ad0465c0aafc8e4b9151185044b4d679122b66d98831226a. 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/TCACS1636890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7428cd920c5b91b3bdce4f0b21d38dc14ed874c348ae685f2523ecc8485bb596. 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/TCACS1636894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1922d2294056e58dc014315eced61303780b64d68d5ced1e9392edc13e64cbc8. 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/TCACS1636896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09daa5239c403fa7d849776c163d2f0ef5fefcb9d75d7adf807bbfb111db2419. 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/TCACS1636899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1634e13cf6fc0acfb455286d50e7cc1f26d64ec9e56314747e67227efbb00ba1. 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/SE66N2213770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c93795a1e4512195816ad48c905c7ee12aecf23063278f82cdc8da45306dec8. 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/SE66N2213771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f24d088fab3d6d924af54669dbe0d55fb16257da265ff6f247c2c4734cda5b4. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/SE66N2213772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39e01f9cce2127d0a5946820db491b8b819c39d8825abf91aebc50199962e8b. 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/SE66N2213773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbf81768f891df7ae7832e6f87ba719854412ac7ec0da6e6002ad5ddc43a1ed. 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/SE66N2213774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b124a108a1c5e94209a4494dd89bdc23953b9b43609b10615279348f2e13a9a. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/SE66N2213777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfaca9d71b4267892ab3ddd844f5f0f01ff4b91ef151d6f97e91c722dcc1172. 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/SE66N2213785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246d09f7c2c2a1db21e365e1228363a3bd045bfebf32c47ac8545c4387bc3559. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AEA0Q1806764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3035aed677b91bcc63d6e708f9fdf84a8e8cb3010ff4e153bc329824ce64777. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/AEA0Q1806763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c940f23661761ae7b409c2b326ee34d3cead7f4f47141a9bd0b736574652152. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/AEA0Q1806760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b38acc56ed4e442c24143b3a1e477fe23c445de4c5a7d2327be2aa37966653b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBLFP2041877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe888e2267ee68cb4084b34072b98b73ff9f2505f8adf6ca6bfc8ff324f89834b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZES91803092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa9756f4b3f1dd1696760be99f488f01d24a5d409bd5f3c4359bc6a5ade82d6. 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/TCADN1861803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16091701a136cba632c3af464ae78aebe0d7678529f530e9f0a1d0e7f15f5334. 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/TCADN1861811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426e49f79c1bfa094eb508e1a085056dd7ad62a983489c74c6d8c22d20fcc461. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCADN1861818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4adf1b5a6c271f12d6f3b45bf8aa8a2de42539a1dbe9cea5591918288b7331b. 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/TCADN1861823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36dd70c558e8d20f4ebceed60be272d70322be4087a889bb0396dfeee759195. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCADN1861827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe976a7de0dca31af4bc35929a91e953f110523fcf64d0f19a0767c7ea0b454c1. 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/TCADN1861829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30239acf7cf63ad1d852bab141f8a58211d866ca893597a899ff2a10e79e0c75. 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/TCADN1861833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b68993b94653e53861d06260162ecb5e381e294c935d498ef6674e637bfde4. 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/SE6XW2365470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05a5a5e72121d8b956c221f0c45f2dbbb8573b7c6488ea568ab89dc348e1634. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/SE62M2326345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb853fbf558cc91dc7d8e843c697826f89c9d3ca241cb14ec66127153d84911. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SE5752447524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf33fa1e1ac428904e57d97a7a096b644ecedacf9c47c5bed7183871156d7c5d. 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/QZHZ51917494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd55d881b3ec80cbe3479162fe66508ee7748108098165b3fa5a74eb05a30f6. 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/ES71G2321821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fff90f8c828f90e1701a5b91888e142f5244cfcd1f4bd5e78fa0a52792df474. 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/ES71G2338075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e46c067d36aed00d4a400ecd70b8cfb415b8bdb13eb71e291b24913a56b15b. 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/ES71G2338074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6d4bd5af028e6bfcf04944871b41cf6f76f62fbcc4d64b26094174cc132161. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ES71G2325345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc3528ed794de6be0d72c2638e14a525f59efb449177dc9f353fb8880325358. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES71G2338076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d845afb18096d435ca39c4cbf8c9b34ae008adc5a8d8eeba0a804e1b1c33a9. 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/ES71G2338082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406d94df2c4b6d1c4f5a9741cc03720f9dcaac2fc64e0edf159af963abea4926. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ES71G2338079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff726a198d1829e5bf739eb576d4fd1b8b53fa3852c1d6d6c5aa9b59397c3342. 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/ES71G2328467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b98d23a96e1ddd4f94453e4b9caef37a30a0599f9fef993bb3b99a8e56403a. 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/ES71G2338078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10d45550996c9d904cf4375e7904ba80e2efb23706aac5891c534299beb3a85. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/ES71G2334912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68eb1a721889f6e596407658f4b07752b3e58741170ae5e22d4259ac730a3f5. 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/ES71G2338077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2254204f6631e3bf360359ecf6723b859cf0b29a41d37ddfe5607d96206e79a3. 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/ES71G2338085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9380117ae7226fed5ac0f6991174b455773ab0cc538f1f3bfd1d3e3430ee68a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES71G2338084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70aa1632d805041265d1b1b550d8822e80b9b8ec33ad407a30f2ef0ff3123859. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SE6HN1994185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07151399cbc0255f78ad14c086d2dd90db21e53b79999031006bc8d9b251fc82. 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/SE5BU2424819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a46b26da1b103da203aebc5a659b30a11ce019d53fa61aa29041ccd77528b0. 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/SEYOK1855566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df8867205e639b0fd43c26e45241d441acc5929c2b11932029bb03a0dedadf8. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZGLM1980635.