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 0xcf388ae44557d3fb78bf1aadcc34f07eb9b0d6dc59b53bfce38ee176c4b62a15. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2ecb64a-9a4b-40c7-a328-adf937c5c4a2.json and https://artists.proofprofile.net/proofs/artist/c2ecb64a-9a4b-40c7-a328-adf937c5c4a2.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 0xdd433284fdaea7218e8c7a687766e31d311a4e8552e0208a2297e444bb04d583. 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/ROGRA2300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9449d9bb477a14e64ff70016826c1a14639e9b277ffefafa7872bf7f2a3f34b. 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/QM4TW2362093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24424793442c65c6c62588dcb687e757d39f4b7b362eb63550d34435e450855f. 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/ROGRA2400329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea21b739284da10bdaeb7742dc5b22121fd0156ee61134fadbcec8689361af41. 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/FRX452446170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94441e8e52113066fa8f1d3ab5caeae3014fc8db2ee1413d8e9d4c613532c96a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ROGRA2400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ac6cdf370341194eee9c10b9842f0899f0765206a9d95a9038348b8e84fa58. 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/ROGRV2400218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d6ff5394dadca743a882582f2b9c6c8aadc8b8b22f45099da3b67489796570. 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/ROGRA2300688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6941ab7def4d7566b71636ead030a959cfe3411865afcf353130efdaae415638. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ROGRA2300466.
Early In The Morning (Alternative Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251aab0183abeb74acc08e85565d6bdf8dd7c62ac43c80254c337f5b48e4ba73. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ROGRA2300341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa5f129171f8f2e0968de595f20bfc64ff72038f16e82faea921f51ecc471d9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ROGRA2300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a5da3b20f85b17b8f3f699b24c4e3be12a37071f40fd795ba49bc700b0de8a. 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/NLT2H2200230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06023433c73c7827ac6f1bb11267484d76cce0f2b64d458004dba329026b58c8. 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/NLZ542200384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4fad8c01eb7806466c974f6386ddb8eef7574eadf58fb4fb48938b9e8c5b05. 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/MXF012100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f7a24e7a1cf5180ffdc48201d41bb917591211bc1bb01986e1def387422570. 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/NLT2H2000436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020233bcae9d5d6dbf285e958f5720f996f22671daac26e165bf3e9bc6d406d2. 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/CYA112000709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522e5b26102de9774cc601c2ce4a51f23f536b1984ec20a252d4bcb17c5bf229. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CYA112000148.