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 0x6acbfe988a393e8166b41882baa71dc40f111cf22e2a9d16adec94cd776daacc. 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/5c1dc635-d77d-47b4-94ae-c1fe9551b00a.json and https://artists.proofprofile.net/proofs/artist/5c1dc635-d77d-47b4-94ae-c1fe9551b00a.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 0x0c369f8cb7a0991856be9715fb5f948d4417e7dbc5619011fc2878a407808b0d. 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/TCAGY2388868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ad121d7392e9920220ecf0cb8484498c6940ff72f24925bf2caf04720f66a1. 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/TCAGU2343853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b956f9f757b47aa432fe6257ed7541fb44807fbf711f5d7d88a93bae72ff29. 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/TCAGS2378085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e359e20b06dec5fa72730948d96d38c77379236b93de891b9681b3802925d2. 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/TCAGY2389090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b01d8aba46ec9c0883d176e6de9eb7df3717f3a5f082379e40b59d7001055ef. 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/TCAGY2389114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d5d069ce9ac0a5baf39b0d1de4bd7ed845119eda3be0bbc93e3bc1f694ea45. 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/TCAGU2343258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa667b996a2fb0651dd4a929937955eaa959238e3feedc7af8584de22c4dcd723. 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/TCAEP2043575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60892ace96f5fa190342c0238b061a7ae12ba7c4162d2a0fbedb30fcebc4b9fe. 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/TCAEP2043580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab427a28f81e2df8c0a42b0be58325e7454016c315cc1a84a9a74cb53df38b8b. 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/TCAEP2043628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff531aecad7a87898d6d3f1c553581d0ab3dea84f8c262b6dc8ff7c1e9cdc4dd. 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/TCAEP2043668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f8d8c2d998c9eb8f71054675a335308cc6d999670a3103d82dd2698099f877. 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/TCAEP2045498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a166f2fc377023ae567c9138237d2783f19e01121a317e10b0d389ca46e178. 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/TCADK1775658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71482c7ff27b6134c67ba21c2d781550c6bad0a52a17c2de70afac67dc1b371e. 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/TCADK1775669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b52ce0801d64caba2c4cbbc0064873f8ca475dfdd432a2e069e7408147f1be. 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/TCADK1775675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23765310fec1936eb62fc216efe3b2c701e985bf4074a49d9844ea7d82882feb. 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/TCADK1775697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961dccd6555049a250940817adc6e8ea9bc0a4c4f487f4025075ae2cece0aebf. 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/TCADK1775718.
Met by Love (Wonder) [Spontaneous] {Live}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b21b5bd5a48b76243d821b818f8cd4fc19d3ec8bc1d4eb398ce21df06820f3. 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/TCADK1775720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1813d5ff331ceea194c51579ed5daf9ef116a984391266409461557e43fe478. 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/TCADK1775727.