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 0x2db44a0392c78970ac14f8acd8a136b4e43067d9254826558ae209be00f9c294. 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/e1b67336-5854-48b4-8cb2-5772e303f98d.json and https://artists.proofprofile.net/proofs/artist/e1b67336-5854-48b4-8cb2-5772e303f98d.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 0x08724f9ec5b3b2c7e7086aace4217d4de34463f6f2891cf891de1f07fe8ca6e7. 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/FR9Z62300675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e43d29e2e973a6502373e81ee09cd666b6a6689d8fa18fdfcedd1078fd812f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR9Z62400378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098f70138bd50714acd216ed20579329af9f52462f8918dc4778291e1633fd13. 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/FR9Z62400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30eb308396b60374d88805ff47d0c3cd12646d49db22643f57e9967c4e555d45. 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/FR9Z62400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f80e3e9473eaf3d357f4424df18366fde423bc170f0a61ddc1641bf721cbc20. 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/FR9Z62300728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b95c2073d7ec3f1907ad3a3f09056f7219b43089ae166d38efc6eff32be752. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR9Z62300502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b4bb5f8d576a65c9bc2adcd476bbb07e9079d20b7d644ef15874d974352251. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR9DA2000420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4eefb67f818db64efcafc8e187262503ae10d28d25c69eefe6d463ca526c3c. 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/FR9DA1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebeb2336df64989f61426cacb2b7b9241763c7b6ffcce3b3b32338ced3e7957. 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/FR9Z61800124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48f61c5c372f48f3950cc74c7c0c7e866d01a5247540a1662dd20857af19fdf. 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/FR9Z61800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70842bed87b7dd67ecedf97502bb5496ab6a8c1537151f95c1615bd0c9df741. 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/FR9Z61800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398ed319ce85866e10dceedbd3718822255ccefdba761e8886bac299fafd5d3e. 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/FR9Z61700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c1f5cfef4dcf5e04b3eeb0366990b0c4dd6563724820f90a81c9acf168332e. 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/FR9Z61700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163acba1741c51bf86bc41ed5f8d10c04aaa22deae6acba68e67a8cb9e577d99. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR9Z61700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bcc83057852ada7408ec083a2a6655fc63e8d182799624a117176212d1bceb. 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/FR9Z61700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163acba1741c51bf86bc41ed5f8d10c04aaa22deae6acba68e67a8cb9e577d99. 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/FR9Z61700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c1f5cfef4dcf5e04b3eeb0366990b0c4dd6563724820f90a81c9acf168332e. 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/FR9Z61700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44dab0ff262c200d2a37f9ee1a2d39943ca5f1ecf4c5351de3911f5df649ec8. 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/FR9W11507329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced1bca8da851a43665b01de2de3a16a0fa551f47279b0a9b9861a1c08db31c5. 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/FR10S1421996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08691a9aa6bf28c8dcb5c8decdc3dfdcc49cce72e958746caef689f2c8cca35. 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/FR10S1421997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cce407e3aef3b24b488929dd04427a513f43b101f2d25973395a11d79f257ad. 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/FR10S1421998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6d877ddb64a9c09d260deaf404d6801b692e7072ab4b1bea82f0e360177d3b. 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/FR10S1421999.
Deep House Fever 02: The Finest Music Selection #Before #Party #After #Chill
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d562c3c6d4da54b164ab2dc7e533e8108725467deb2fa11ee381bc73ffb3e7. 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/FR10S1421995.