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 0x27988cf56f6291e86972654fb485875c4ae06a309fb9194590097c3f1da36718. 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/b00e64ab-d20b-4f10-8fcf-921b7bbadc7e.json and https://artists.proofprofile.net/proofs/artist/b00e64ab-d20b-4f10-8fcf-921b7bbadc7e.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 0x7b688f9ad2a300449a4c4af1117c72d9ffe332f55219add287ec7613af44869d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZDA72050037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5f28f3e0b602e447a2aada4260265dd71c2695cdbff0a5191abff5754bad8d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZDA72050038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841623be58dac7fc12d199f527fe0d03e7b39c710934b300bb095d9810580a8a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:19:21Z), 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/QZDA72050039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e2755e45d84c234906165d5bccb2f571caa6e98ef21f97aca3e576f1155dd4. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/TCADT1837267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ec418cb352b65d4af23bb43023f985d8901c287b3d7bf4d1bb079a4be5de67. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/TCADT1837270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7e5973afebf666a0aae5d8679a1bde1462508a20f010353d6c579d282a7fc8. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZNWX2076337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf418efc338c21e26ab50043cdb6c0133da59024841c374de0127ffeaba451c6. 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/QZNWW2188135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710656c1545df9ae30b2a56e27759326de7dc1c07a2ecd07fef1547f9a5a8c15. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWW2188136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6306ad2ed997b51768890725816f02845a57f1fdfd00d2c6c408b1e4d19442d. 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/QZNWW2188137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb82198f55ab87b58ac675239796adc9d4359b4b99f6f13953f49dd2081ca64. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN62215258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c78e116e50f01666bff57166739d989a18675db483e28178e957862eef2406. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTB72232484.
Chosen (On A Path) [Spaceship Earth Remix]
Oneness Vol. II (The Cycle Of The Infinite)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec7572c1acc1b533e14e690b172d8f6fd519467fd493330440e5f360f598a23. 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/QZK6Q2352374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30702dda8865829c7651885db438920e95dfea442c6726a17b589e9171bd1b76. 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/QZNWT2308178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bb8498d1c2ac53a0219c5ba64a91c32d00da867ae9dda84a96a6cac77867d3. 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/QZHN92424671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8695c54462488ae1485f7466d318cc18fe79e921f9669d3adc60c1ff4c18cd4. 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/QZK6N2524838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b0f04fa3f5df1a6542170a2521a25af21423891a96069dd65219b47cc901ce. 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/QZNMX2515990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572f5d9eab66d0b182419c0eea03307be896349e152e25c63b51eec5d8ea4f33. 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/QZNMX2525654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5b6f9c21fb053e09195275c7ae000277e145ad1c8bb84264cd7e84c4d0c247. 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/QZK6P2436775.