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 0x603bd0de3783fc426db1cc7f2516436eadf38264ba7ccab7ecfc049b4dfd3122. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd7455cc-a0f1-44b6-b060-3d34f4420cf4.json and https://artists.proofprofile.net/proofs/artist/dd7455cc-a0f1-44b6-b060-3d34f4420cf4.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 0xd5f174fb96b8f7b4703e6c41bc64bdb45c7ab0090a750edaa113776f94bf0b12. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V80627607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a735c5e0999b4ab60a024386e315301a1eb822f6ea24717f13fd592bfcc9e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V80627608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aaf8fad0a85e395300dc7ba44c532873f5ee0cabea2fca947f1d8d42a454b78. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V80627609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a58552f213547b376abc43327c95df0e3c038524d76d13e75f3842ff586c1f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V80627610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c064576365028cedc04e41e909ec5d323f7cdb2dae33c5e13b92b4e4e70647. 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/FR6V80627611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ebd4598ce621fd54502e2a2a90c2e1ba49ccdd42476ecf0c88aa97753dac70. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V80627612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056ddfa6b1e0da8b7aa2462c66f16c7ec5d86ce252f057644d31d4da9b42d156. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V80627617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3a9e9aec5cac7335097ea38e777894fecb2472d602ec240fdfb315099b33b5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V80627622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063bed3d0411b460e46e0e3e4c659067e57ddc0eb6cd6ab8a048d9b36efe563e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80627623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6648ec9f2eec425989eca3645b5c267f7257ba3771fa0cbf41ba6262507064c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V80627624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb9857e8801910c8b9148cde8d4dd53c29842d82057bd7d1057f74be29e7982. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80627625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8a85c0f0efd5d9cfee6ef1b022846c2572f96e636019b42fad7bd551ce01fa. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR6V80627620.
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
Don't You Worry 'bout a Thing (feat. Alessio Menconi, Maxx Furian, Luca Caciuccolo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7638fb52105bd2b16231d0da6c8ad5c73331cf1bcc1cb0c929a835ec4e25c210. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITQA01200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd3f5578f2e5b27240157a2294e38e62193ca2ceefb2a6a6e2ce026a6589a18. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITH752400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e8dac052eb8081595f06eecb3277f06fcb92165ee169e479f94ea6d8cf9b66. 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/ITH752400023.
Cool Trane Trio (Live @ Unisono Jazz Cafè - Feltre BL)