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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948b49557ff68b5cf6bee67110ecc4e2e4ea903e1f0bc9eae815c448065a68c7. 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/2bee49cf-3f95-4144-aa94-3ab48313a60f.json and https://artists.proofprofile.net/proofs/artist/2bee49cf-3f95-4144-aa94-3ab48313a60f.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2d2cbd87d3a162663e7e7d99075be63188cd5766a77a92689554a46be49415. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFZ52101055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e7a0313b5de767c4b06147ce86c707a1613d4e8cdb7392018d8f077f469e4c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZFZ52101056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xededc1b99c005b50765f05075ff47f337c54b49bfbc49bbbb8d276246d213a97. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFZ52101057.
Beats & Love Vol.4 Compiled By Kid Fonque & Frank Apollo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e3751a735e63927aa0716935e64517abe2db2afb892965d41d08bbb6d7eb5b. 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/ZAG8M2200816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3714d62f1c3c5c13f724af75c87373e41d382324eb565c9215e0b68ebd908744. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEY472473076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff8d3eb9db1bd547900930a420552453d030d831c356034194550ed7dd3109e. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/NOPTR2411010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe4621c0a312f2024c123be49d7d996c023d8e7729bdb09f81ba57a7551eaf2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEY472577610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d427744a9eced2f5fe12d9dadd959bca52ab4abdd25d8ca682cdbf2ffccc06. 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/DEY472577611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96deeb8de02b92ff96f0570718ebd1e8b2b02523464bb5c82a3e48c0eebfabd. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEY472577612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c84736264f4d2b8fef9649fa74c0becaabf99c70a55965e2765462deba33cf. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEY472577613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e71fe33e9e3084f45ea06dfd4d1452aac52d31a5e7bf7744f702eae5e057968. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEY472577614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42587abc2a2261c860a09e4af5202b4e70c764c9349bdcf1dd3f748b0a02897b. 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/DEY472577615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62e23a687b6a44d6700c3acf58fb072fb64a366688b2a125cfaa876d81617d6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEY472577616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca94667690d5f62b6e0c4160788da7ffb19fa1c02f248f076c72bca9fd65c61. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEY472577618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d84073d26e59ef68e713ed5fc22a8b14836f8421819b01d236bc5c3c3d0ac9d. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZRP52418258.