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 0xee4ab66cdd8dadc0a6e5de19f35e119d3090bde2667bedb8d1bb4d73b85c6b18. 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/431323f7-99fd-4059-91d4-7392cb7d736e.json and https://artists.proofprofile.net/proofs/artist/431323f7-99fd-4059-91d4-7392cb7d736e.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 0xb4b8dc790f4bdf02701020ed3df329e87ab075f201be4635b384efd2017ba50c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZDA81861894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9fbb382cd62b2ea52b18e5aa347a9b85ac75705637a78367667fed9b64ef50. 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/QZHN82174266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c3e069f0df81dd459da862a81163824f8ab96bc0ad44eb94d038c13fd0da4c. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZHN82174268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96944cca46833fb7f1bd1e9900938ebd4067c903ca50d231bd3a1fcaf7343ec. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZHN82174270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc70d3e4dfcc70320a88bd2548374296bf59b9f9f8c209db4faa4969c2981fa1. 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/QZHN72394820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0264f31607e31ec7e40f105a505a99c05885ecc8155ca6fce610aad4e4b38d. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/NL8RL2517538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf535baad5e2c0a5bb1f7e18544125d442cba34661effb65b330e6cf28e18532. 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/QT3EX2545996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdb2af909145d6c14e48a686b79d122eac76db925e3f9fe98a60117f4362370. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QT3EX2545997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d401b6741464ac9445919f7dfee2939d73a0e841a5b995ae8ab1851f90c2f3. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QT3EX2545998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce794144d0e1c1b3919b0cde09c63fcbb348a49da6fcbb0b69670fa2db70b36. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QT3EX2545999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848371f46dda24434430e8c795d08e2838a30601348cc89719bdbfc0f26e0497. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/QT3EX2546000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760160eb41f8d86d2f055debdd09bf2b060355c8eab37a5f264695aae3b27c6b. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QT3EX2546001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54c974e8b4060905e3685a37de4796cfbfa814c59e93ae207e7b848be9f828e. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QT3EX2546002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93fd26444f42c6ccc7e8af7a0dbf5a9c921ba032a99a0f921db2a9cdf97ed66. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QT3EX2546003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4b9ca4ea0bbe8eb141cbda06f8a65b7b1526cfe6b8aae21261d0b3f1af4777. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QT3EX2546004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfaacb79e0cd0048b8af31d51326ff14c87522d0844353f74425587e7e3b1e4. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QT3EX2546005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04a5413b0162127bd883584b18c3d86043188883fe48dce46f7d630090173b8. 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/QT3EX2546006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c89c1a75944329418cc08f028ea226652992206454a7ea0c90067d1ba034a8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QT3EX2546007.
The Elephant Man's Bones The ALC Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e15d473f973b18fcff0f1ed4887eb8f610c0b3966f00f666c4488ec7c4b5e18. 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/USUYG1439977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e15d473f973b18fcff0f1ed4887eb8f610c0b3966f00f666c4488ec7c4b5e18. 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/USUYG1439977.
Ken Patera (feat. Knowledge The Pirate & Remy Banks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc983311051d7aacfabefbd80fa8aa7a96cb59266a03233aa2768a722dbfa1173. 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/QMDA72188640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c896dbb14f092fdb031a5ced15d15dcc3338f01b7daefd99b9d6b8e5e196a4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/CAOPL2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9df2872e425cc7cff3626d337960f224119f75d813f05c856149ebf6d27120. 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/UKHF72400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b55b9879f41d7f23eaf528bfb4d1c7e535669c3ef2e0a56c989841f0cc2d5f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZWDD2375147.