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 0xc5e9b3ac0f9710705fc795ab03c5f8f297f4151030f73c24116eff2635a0da4f. 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/f9a672b8-d650-4786-b1a6-02c8530d1e78.json and https://artists.proofprofile.net/proofs/artist/f9a672b8-d650-4786-b1a6-02c8530d1e78.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 0xc739389fd7c901a313ce0aba777ac3a2cd98071e35bbde4a8a4a3c3814068c04. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USCGJ1834543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3df26002722bd0852b2820f5c2a83cda9f761ede6ceba97838b590edd623ba. 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/CLKT22003539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3df26002722bd0852b2820f5c2a83cda9f761ede6ceba97838b590edd623ba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CLKT22003539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b48579f0b8d6ce8c7b77c793ecb42eb56c0e7c6f5725190a210a5d2b9e1df93. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/CLKT22003364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec150021fd5ca2b3d9064b6ed6561a6258750f95f10ac66e42ab37b9ed77357. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CLKT22002973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c9751afd903621a50125419397ac4f7abfb07c0887c60db9591eed77e449da. 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/ARJAU1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbb8926c173d6860dbb5770f0c376bba17f54071a362b2f479aaa919edd653c. 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/CLKT22103786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc518af3ca789d7914232cd29ad946de38dc0c6721667a225eb4e81a791f1bb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CLKT22103784.
Affaire de colección - Cherry Blossom Season (Remix)
Affaire de colección (Cherry Blossom Season Remix)
Affaire de colección - Cherry Blossom Season Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cc8daada0d929adb6bd42414d3efb55346bf99771ffb1fa140d3cd7b655738. 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/CLKT22104096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc6bea2ddf8645c6d0e26cf4b9b372094adcf1a4cf92c43c9beaf410694108a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MX2682300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289373ae758e9497bdde5806ac31b9542c37541d44e39c2eb3bc8db0aaf8031f. 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/MX2682400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f8fd4ffe4e35571bf5ac815368e5fef88e105a54f2b36c2cdf6b8b3ac0c6c0. 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/MX2682400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6795cb0ed46639c92b1999cbf961fcbfbed20084c2910bef2104552ea62154. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/MX2682400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5b09a70eeac51da61146925603f153297195cbb72148218f4fceed4db2f98f. 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/MX2682400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f06de82a847b5bf4d2e3c3dc94f1b74e4ccc603f7b87a437311ec1f052ebb0. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/MX2682400021.