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 0x04b247514934d9b33796aae8ce9ad53c8bec5f618ffd4157a738f63fde9e79b7. 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/5ff4abda-6c21-4c13-abc7-fb6b6ec3930a.json and https://artists.proofprofile.net/proofs/artist/5ff4abda-6c21-4c13-abc7-fb6b6ec3930a.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 0x968193d8cdfbdfc7a62d5df26d2b08b9a1a0a1964f2ed59b4e1224b859d33cbb. 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/USHM91231375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e574e63a83f777f5179aeefa2dd1d86ab1112965287a01d2d24d2ab9c00ed89. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USHM91231378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56d890421091a0ae848bbfe4df967a3d47b2c72135f01260c361cfddc404749. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USHM81649528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61e4beda431d867e074ec2b83c8f74c3011f83cb5f055db150908b2df046ef1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:34:55Z), 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/USHM91792555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a6ba0434714273fe50f19e1a032a48e5abb9f69eb8a0f4f3844cd71549a834. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USHM91792557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0857e83a4e91d367dfa9b93f49523ee75db34da6d944c62f018936fe9348ed70. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USHM91792559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1831183a7e6b6ded3ad0016e02c046bc939c55e35e46535c20ddf56ece67ef0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM91792563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a97148ab364c981585c556d290f2898eb6701d794b410f640a60e0b8a42ae14. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USYBL1800748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecec14429b7c1f6fc74c8a52daadd01c1031a50b13602b20618282125a3afc4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USYBL1800753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0424629d06dcbf18b7ba20d84c01c5a3ee2227fe56ed40beabe69ba1da49e44a. 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/TCAEY2059906.
Jam in the Van - Spafford (Live Session, Los Angeles, CA, 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc8a6d67db3943aa5d209469d164ab2080f931d7aad7638dab35fc91d51c33a. 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/TCAGB2239722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85f75bd4e43685293e7bb846546cede96799c3676bce71b9cc6138d254f7ebb. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCAGB2241309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca57958c6454b6639d105e7c169086dc0680444ac911dbb565625484a9c811e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAGN2298045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5540ebcde5bd1b910cdc8172484773314107cad55a828304d597f098c497327. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAGN2297982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5825274cdccf3ac7b2e8b794feebb144ac686a43da69ace57eb77200d8597e5c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TCAIN2427416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be3f4861c82c659b1c54cab4489d9f8fc7d91bdf10071a959bcb1aa14b78e7f. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCAIN2427435.
Mind's Unchained (Live in Reno, 11/1/23)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f9fb4712709bca3fcab5ff012de9df106b495aa5b30e3f55e3ac534d52cfd7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAIN2430005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554da190120ec74ef857cb853fb38f7d86d67942ba1e1d4ee1254e7290b5a760. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCAIN2430053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2565720f63a75bfdb2b9e26c328d13f5383c7c7d5579606a08c733331eb12b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/TCAJR2506687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f81a2b17941c9714f8716cbc66f3563923d26d56dd4b19feaa49cbac034302a. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:19:49Z), 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/TCAJR2506697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe679a1b4ef642370597afb9bbe30378ede6248a75bbcb06c4a388e9a72d96ce3. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAJS2506712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81343c06777f437f5280897112cdfbc6ce7807f7e6cdca023b69725f066538e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAJR2506744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c1eeff6ae21b814af0390cfaa53c27f4e964acdf189318c433d53726c3f3b7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:26Z), 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/TCAJR2506826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457aaba835e34ee14a3b53b8271d466ab9ed6ce0b5df5631e3173ed9f4a1f194. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QT65Y2566004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f3619bdb3b7ba9277e44d747cfe80cf5f519b393539d7d506446e6af661866. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:22:13Z), 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/QT65Y2566021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43276b2be7ef95d63f57918e183d29b0c190f9f8772ac13564b0f32ba4b12ccd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT65Y2566051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad9f039bfb1fe10635849ebc9727c53936c11cb53cbff6a9475858b1cb07632. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QT65Y2566064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649a552a7cc9a0b276b55b60edd6d31e0158a9c6b7c8802c84b567535f8b5d64. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QT65Y2566076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2bee6e56833788ffc98d65b4c3ce253e4e710181a84562278fe47288b51f39. 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/QT65Y2566086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a58538b8442ca8b2819c5c58012e2038c559eb118aa74228a125db756ab4831. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QT65Y2566105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f302e973d19351aa8984f7b6fc22f75134599578111e609cfcc5a6fbc5b69fa. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:36:43Z), 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/QT65Y2565981.