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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 0x0f15aa2a178b63be4e03d18d67dccdf4ef67e1419e14ef14909a0a5640c1ba54. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80512c5e-b015-4d52-843d-04ad8c7edbc0.json and https://artists.proofprofile.net/proofs/artist/80512c5e-b015-4d52-843d-04ad8c7edbc0.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 0x854c9dd047235ff20a652ef0d5d380be7709b479ce450550ef1f42a6577ff00c. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:24:26Z), 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/UKXN21965851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e254d39ccd86b3812fb0233e72b0e668beb1d609740ce1fca6a3b7b4fa3be9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBMA22109552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab387adaecc1199d7cc918c7ca78b61a078d252105d50336893cc5504844dc1. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/NL3LD2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6844189e46b2d2a6d4ad767501c7edbbd7ef0575c5ba00d119d9061c9c64d3f6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NL3LD2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2164bc1b3c8ac44752c6d84932534b34f0b54d6b89e505168e5ef0afd41530f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NL3LD2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd620844b0f801103e13ace739e51befaaf65b194273c836f23fa146333567d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NL3LD2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3310e4d0e7e92fe4ce18dd9a18af9da69f96d2009ba849be146628c9252f8ebf. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/NL3LD2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df0a4567841885fb493abb890e4a36b10ee997867bbb3cca851cdd83afe50a0. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/NL3LD2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0ebb366afe1273cfd23c0c5d1207cb33f40050b7e6a2d0531a1ff760367013. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NL3LD2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63cf105c7d765d2044f5180291447887b392eb1b027141961db36644305ac51. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NL3LD2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c57e9aef4c86f23aaabf14cc0970cb323a76acd04a04c2b0b112473b53dac7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:55:45Z), 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/GBBRP2301133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47eeba8e76057e8a6fcf32064946a22a2cd715584f7b6bc8920e803932240bce. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/GBBRP2401192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89238fc4879514e6de8c999a0d11216392f01bd7379860542c7c2ade2a7011c6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBBRP2401206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc3ba80598ad5329b6555b2c62144967d41b9068fcf3b05562e2b32e67edfdb. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GBBRP2301137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c43d6f5907e1024cdab2a07f5440634f5674399b3eba6c1f8e787ffb07f2a95. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBBRP2301142.
What Am I Supposed To Say About The People And Their Ways
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9233230369e858fc940e477ff27cf188d64d171b091a4040a4100e5ed4e9ab. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBBRP2301143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb991867150c7f19508f57f6ce7ac97c417767a3d90a26c8da7b4a5d7394872. 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/GBPVV2300094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb991867150c7f19508f57f6ce7ac97c417767a3d90a26c8da7b4a5d7394872. 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/GBPVV2300094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f6ff30854e1a1073142d202845df5cf7e576f47f4800cf7b787dbf388b67f1. 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/NLB602300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f6ff30854e1a1073142d202845df5cf7e576f47f4800cf7b787dbf388b67f1. 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/NLB602300260.