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 0x030247315730656734189b3bba0227533bf8f724d4d1dd9e0934c4baba9f4ddc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdf3a032-facd-47a5-8b57-0a236370fec8.json and https://artists.proofprofile.net/proofs/artist/fdf3a032-facd-47a5-8b57-0a236370fec8.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 0x5d26ddc1c7585a33c80e6302baf78258c7816b18903f99e4e2ea34fa28841ad7. 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/FR59R2156606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb549a3dee6334ce10df9c647c61e810ff2f1217c4c9f1bbbc525751fb4b60de0. 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/FR59R2156614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4d1c312617678e86d167cc3da1eea8349ff93907636b6b9d76134eea517f4d. 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/FR59R2156615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbe1ac24a370351f19b180e6375206a385c1f03136fe1f62eb6e4489cb474ed. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FR59R2156604.
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 0x66d04f65a85d3ae7fb69e8cca2b105c6fd941fc6c5d2474a9db47f7cf1de9cf8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR59R2156605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc883051e487e3bd4a99cb15aaa046af7c957b74de03b7cb54edbbef20007d4cd. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FR59R2156607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7587a67aba6fe762cea95c96597eecbd0160b28310d6dc2ada0ca7060812a4. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR59R2156608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf114d3fab709b846235c941b3b638815a3b1a902bdbd89d404e8f1236f2ae9ec. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FR59R2156609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173ced0e88048776e0561cf8c5ee582740fde3e5c57fe7ce64806f99d9ac5b1f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR59R2156610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e23cd99144d9e2daf74f9b1c1326f363aed4d47fe3efdec5ae333ac4bfc8e5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR59R2156611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7470b3f7b9dac61fa306da0722e9485fb678ae1e99ec3b4cf2c209a233c3cf4d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR59R2156612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fc388ea6472feda141f40a7d759cf1a9e2209dacce68f64bc0e53914cd07b1. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR59R2156613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb77a49d424eef338aabf1feae1a24fc7f00073b392f67e2edf9950dd9ea9905. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ZZOPM2117668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9140ada0976a4dae791e1c2462dff79e73c444dd717cdcf374512f539e16b60b. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USANG2251104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4213541b23952e8f58acc3c8814dbd0091da022ec3677ea79b03141679d9bf7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USANG2252989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e17b77d1a991e5d5d664b3092bbe55f54e451b462c6af9633e9914e177be86. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/FRX872375805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522a02d6ec918b255baef425dd9d6b84fafaf56c326bab1c4787515d947f64c6. 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/FR10S2431404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a15a5707b066a81709b31c68150be3b19e69acabbb56783fef43ec2a5bac67. 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/FR59R2414228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db856c84b1ac6c41cf8d399c4b5da58e6683b525f15bff6122bfe2c7cdcbe17. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/DGA0S2454741.
caminando en la nieve (feat. Akapellah, Apache & Pawmps) (Orestes Gomez & Nick Hook’s Versión)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2633d40032aa75b12207de2a854fd707fe87b2a0a1ece3fbb6a6d80450f5a572. 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/QMRSZ2201212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b6ad1c26323e145a8a632146e51bd9716491d2649fd8baf5fe5c16cfc17cfd. 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/MXH832100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f81c2c145c46a58673090fdb5d686a8ba54d4d1b5784c479e56a6f56cfa2d0. 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/US3DF2165344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffd119048b0d651917fd229fa0ddf301ebb0dd26a6542581b87f338e909958d. 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/QZW9K2202131.
caminando en la nieve (feat. Akapellah, Apache & Pawmps) [Orestes Gomez & Nick Hook’s Versión]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2633d40032aa75b12207de2a854fd707fe87b2a0a1ece3fbb6a6d80450f5a572. 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/QMRSZ2201212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4150100fe5a3abb43d4b5b720d6d31ad17d65309c2d05727b1c827e736cf6d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZHZ62228867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc92e5fc6c517d9f36e10e03cd71e8695afc68dd1831ec670f1b52aca57a2db2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNJW2470587.