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 0x4ed3286dfd373f15ec4f90b0ddf4f99659e911d23011e9d27feefaed55d9e457. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a91ebfb7-35d6-4471-a263-098903322a5e.json and https://artists.proofprofile.net/proofs/artist/a91ebfb7-35d6-4471-a263-098903322a5e.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 0x3097e949f432dbbdaccfcab827136a86fea421eff83477ed88af07bb3bc800d3. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:06:08Z), 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/KRB471501784.
Map The Soul (Worldwide Ver.) (Feat. Tablo, MYK, Kero One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdf905091b74230f7e0e1d066b379767acb39dc0fa39ddf369e1484856142c8. 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/KRA350800705.
Rocksteady (Feat. Kero One, Dumbfoundead, MYK, Rakka (Dilated Peoples))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0946f924ffb99ef340ac537f7a99f315a4dc74a5da2dbabcd4f366ef993f3fb9. 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/KRA350902016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccefef1930e35f0e53c4d3977a3818503bda9c08d1b7750d2d4fb10bd03438aa. 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/KRA350800699.
Orchestras. Spotlights. Turntables. (Feat. MYK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6d568a1a385f02832f2f19ed5052d897e455d7f77691bfa6d8267050012350. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRA350902012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a06d54d107efdf5b0aaf7611df2c0a89d64ec9dffc6751c4e2dacded79301c6. 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/KRA350800702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769cf9c755791fbcb319899767c0af34fd30aa0392c8807e1e148ff8f79584c9. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/KRA350902024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eb9752ede15acff8365e3ed385cd52485e5c282857bc0a0f79dbac53926994. 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/KRA350800704.
8 By 8, Pt. 2 (Feat. MYK, Minos, Paloalto, The Quiett, Verbal Jint, Kebee, E-Sens, Simon Dominic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ee3fd8cc2abe35ca200ccf1990de46e08b3ab3b1d6f8f35f15bb268b25368a. 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/KRA350800706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6e12950573de07642f308ee9aad532848dbd86a684fa8974e3c11ada764778. 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/KRA401400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34ec31e50799ab311d3eb22f8cf93fc414f1db75a9dffb791adc883c28575cd. 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/KRA350902001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c58b8c82dbe44e0d010500c875bb7b1b3ec0165b8132addd6f0b4ca437e675d. 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/KRA350902005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f00f10e96314f3d79201e7ebb87936a0660180cc7afbdc8e0d40ef24e847896. 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/KRA350902009.
Remixing the Human Soul (Remixed By Planet Shiver)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0838cc66fc57ce7190a1dcd9f284bf03c17864c424edbd6b9893bfc81387a0cc. 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/KRA350901904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8fcf99891ac2070e30de408831a38d81f135e9b915866e2f52e45fd93ee76d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRA491600316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f402dc504c7e6ea097d06205bc1fa82820d9cc41b52414c467e2f40d1eb0abe. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRA491600323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aedefc5feb533ee09cb1b3468d6b36cc49a40de4fe564f3a602bc71de0c427d. 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/TCABG1270749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aedefc5feb533ee09cb1b3468d6b36cc49a40de4fe564f3a602bc71de0c427d. 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/TCABG1270749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467f1a4d6f5305e8c99780a88f0aad74b926fe5dfe47fa1480e36e23244bc8c8. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/KRA491600326.
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