thumb|Bergie collecting recyclables in Stellenbosch thumb|right| Pronunciation of "Bergie". Bergie is a term used for a subsection of homeless people in Cape Town, South Africa. The word originates fr
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 0xdbd688702ca3ce2c15762cd2496f9d53287d2afe826d25664f21919465507236. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/419202cf-c4d0-4ab1-aad7-d56715092b7a.json and https://artists.proofprofile.net/proofs/artist/419202cf-c4d0-4ab1-aad7-d56715092b7a.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 0xedd13ca265afa6920ad3e50d71da15def554fa4647d80154e07f8d8feed56d25. 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/QZTE82100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fb441ca3de0b70a40f3a2f8fe9f4e75ec68e7f8b28cc9759e83dd7aa35c3b5. 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/QZTE82100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165a5dad6301f945bad768abc6c60d0105769c200db12fe384e6e5e4db5f2995. 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/QZTE82100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabc3c8e7a30e182212ae1da04e0384bc1ddfe6a2e29571853e527927f140b5d. 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/QZTE82100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34881fe3d21c53e772fcd2ee3c601a42f87f50a5d2f44a1f3ee0a54ad9eb5f39. 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/QZTE82100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb51c73c651b25034f5a06c1f39c79faf42a8c1f5062b0b53e509ef01b33d655. 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/QZTE82100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50ec4e89bc7575218aceabaa2062a88fd4ef3bb678fbb7eb1b9d5b6baeeb8ec. 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/QZTE82100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2062028dd4ea281d541af91c0d5f9063d7f45cad2a57cb9194cb1eafeb99ee77. 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/QZTE82100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063b165b025f2282990d7b490962f45a2e30ea9730edcabc05a1da1f44d527a2. 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/QZTE82100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849666f55aa65c95ed459c111fa24933a715f015dcda3d45680813fbe91ad418. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZTE82100007.
Somebody Tell That Girl (feat. Anne Wilson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e95aca12b0bffec079f74c3ff7a8b7dd3afc943254fd5c0b38d661a7d9bce64. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZTE82100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0565265ce0286ac44dbb378cf88dec1c4bd8ac8d15edce12a73e7d57045748b3. 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/QZTE82100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee302665bfa8ca035a840aa40cda3f552cabacc0fa0b9efa9b0e8acb52e5fea3. 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/QZTE82100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221ec18ab483179a6a981c3d3bab800691d8077712de8d4c444e7ec52f7d752f. 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/QM4TW2397855.
Country Music, Girls & Trucks (Cottage Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1d8655181e7dd80369d94ca3809149206e94c44763935403d364e7c2c5ed9a. 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/QM4TW2397878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba5d48e6112e91b1fc9f77991108afdf3cebde3e7c5bcb8642c165d94f0ff5f. 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/QM4TW2397886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05130551f00dc0e90c82f7971640b1ab602f2addff2880b1c5f7ea417a5ea723. 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/QM4TW2397889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298ef20c21845464fff410f24705c3421d7779722c2e64a5429c41dd457c896f. 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/QM4TW2398189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c3c1b7172edce599934cfe356e7a03d2c0850061f0c2eb9f72fd03f3d1dd36. 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/TCADT1824360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c9c31deecdfaf96c03465419e48ac684a8dcf0c77c4fb13febb06d705f56c4. 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/GBAHS1400461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde1d4255259d544f02ec0beec321dc684d31ab1e4bedb6269362128b58eb993. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USAT21503698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf804fbed090184b575e5c7467e3585cc4abd0eff5df9388e4029ac502192fb67. 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/USRE11000684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270d38a933b72c324a68b067d91446b6f11c90d3cc1c1a5b09abb940aa8acf70. 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/GBAHT1200225.