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 0x580674b9d201fb427808f68b72ed5aad37f4f1c09cbf911612dfd7cf3c47b890. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8937574-1522-475f-a88c-ff7cbdee9266.json and https://artists.proofprofile.net/proofs/artist/d8937574-1522-475f-a88c-ff7cbdee9266.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How The Green Hearts Dance Under Samba Moonlight
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 0xacea874763095375e2907eb084fe15246939d34cfd76f6c7e6cc4ec50c3a5d8f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:13:13Z), 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/GX5MX2313982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bc7e9c20ff4c14304df9777c2429167cbf76feb46cd8508c351ed7a8004a45. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:46:59Z), 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/SE6A92027466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b3984c0c31d9e928f5cc679544592174fc844411578a312210560fb53d1d01. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:26:49Z), 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/QZAMM1947685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0752bb783ed72098a04bccab964741a780f3565c86b2ef7f1fb747324ec412b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GX3HH2237489.
Music Is What Feelings Sound Like (Volume 01)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa247d1046783638abf04a2381a05b17906231f894d878b9ce54b9220c4f70ee1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX5MX2382483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b4a0abd402dc12bd329696ed0275abd406f3af27b43430ac5848cf6a6da015. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/GX5MX2397075.
You're My Fantasy (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e2e10de976e6db17c2f0de46a3e2776683b52e1337f08b124f39f62f776937. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZAMM1989686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b66715c236fafc7d4e4f895403636a425265ed35de435f83b17ba0a25a629dd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZAMM1909310.
Set My Heart Ablaze (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce4c911d32f3730c420034252d6728996ca2043c06b2a5de2241147eef6c346. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZAMM1925847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842e47eeaa051bb13b0e334defa0528139844ee5b1848cf572df31c1b8b8a302. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:58Z), 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/QZPJ32469308.