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 0x6aa4e5662ef2f60365e8de0cb3b63c449e4cae8d774d34cd2be1a3c4d03bac77. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/287fa3ea-2d06-4b89-8a3f-4b2fd7bd8fd3.json and https://artists.proofprofile.net/proofs/artist/287fa3ea-2d06-4b89-8a3f-4b2fd7bd8fd3.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 0xfb9943356887cc9dbf536fb2525a917d966d26e0073405015b6990356dd92244. 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/SE6A91996714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8878d925534b95da235a23e79cfc0fba0fd06e04be40f6183f83d57f07a431. 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/SE6HN1939484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd492af5b463272625f8e00534a74f5628ed99f6891d35dbc69bfcf175492a5bb. 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/SE6HN1939624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277c86fb7d133d39ffd012ccf7dfbea6d6604ca2b7e6d107cc73b13a42d8def2. 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/SE6A91969418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92783b22c655738f413efa41a8cba8e3fa8018639fe7f2bdef5b773789d23f63. 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/SE6HN1945555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e2077592a81f5aa3b4ba8c261b1a0980b1d831741ac0887a530d6db4f100b4. 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/SE6A91967812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9f9f208887246d1bb98f52f6d41f6466f2d2141e01dc159bf15ca7e0337e37. 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/SE6A91965461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e5a8b949b6d68fffe48b3deef37f1e59a8cfea6a91ee9998005c5067f9059c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES97D2210412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bad67d35c90f75791cfe29e0f3c4a60c98173939fd5d4d2028c4b995ffcc7a. 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/ES97D2210414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb879774088f106d99e96f7c1f32c7ea345b1b2fab5cbeb582c6862e0236bf42c. 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/ES97D2210401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e245a767139191c30d1a9bda2fc747aceda489eb2c084ceb8fd90d94bb1e55e. 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/ES97D2210405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361b9594318b8940f49e19caff63f75b4361b978b11305bcfa55f35beb08a2cd. 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/ES97D2210408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80255109499ab177f192a6a7372d860b2ed28916f46434a0902d8b41d47ae2e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA012060472.
Algo raro (ft. Teuma Thug) [Persona Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a01314338678d4f6211e54486f9cd6f4b7b54b9bcf33bd346694ca6e6092ba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA012060461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80255109499ab177f192a6a7372d860b2ed28916f46434a0902d8b41d47ae2e. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ESA012060472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e556cc88fb8665d09ccf0ad310349c210149c04aa36e3cbc6f583df4267083. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA012060479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3456dda965b9b0aee73d2c8336e39cd3f9ec13aab998a57789e35b172243e5ef. 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/GBLFP2123257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bb06509d5ef1d7aba4e17bad5e61b48ac44ce6572d1efe19f9fa6230bdd1dd. 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/SE6A91989597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9943356887cc9dbf536fb2525a917d966d26e0073405015b6990356dd92244. 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/SE6A91996714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8878d925534b95da235a23e79cfc0fba0fd06e04be40f6183f83d57f07a431. 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/SE6HN1939484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd492af5b463272625f8e00534a74f5628ed99f6891d35dbc69bfcf175492a5bb. 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/SE6HN1939624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277c86fb7d133d39ffd012ccf7dfbea6d6604ca2b7e6d107cc73b13a42d8def2. 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/SE6A91969418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92783b22c655738f413efa41a8cba8e3fa8018639fe7f2bdef5b773789d23f63. 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/SE6HN1945555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e2077592a81f5aa3b4ba8c261b1a0980b1d831741ac0887a530d6db4f100b4. 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/SE6A91967812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522dac95e25b099aceed2274bc2b33c18db934581f98eb19a3e05bbe558de904. 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/SE6HN1952214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9f9f208887246d1bb98f52f6d41f6466f2d2141e01dc159bf15ca7e0337e37. 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/SE6A91965461.