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 0x98b869299dfa177fe4668ccf86098de1a9f52d9f2d3160494059519c27d31a1b. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4621b9a5-f817-4146-9cfd-89ba6b4b2595.json and https://artists.proofprofile.net/proofs/artist/4621b9a5-f817-4146-9cfd-89ba6b4b2595.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 0xa589e1e5fc2df7ee4d8fca7266a3b27274dfd99fb27f83e8204c813e1be97867. 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/CHA832196202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94962532e81fa6a0bca8934937ef238464578115962f7ccfad044d0d08db9dd5. 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/CHA832196204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5148623b2a4f8942a95f370d4a9da1716e95442e190dd491dfe202029325781f. 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/CHA832196206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc317a03975cc0c883aa8400e7907d923d61ca8ba3cbce23e7724c31b91f571. 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/CHA832196207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27c62cbc0afb09a3815aafe61c03fa7f6e6cfa2b8746e3acc3327dd2df9b69c. 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/CHA832196208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc989c8c5cac5a119bb2878d95f3f4fdb3d6aca14dde995b381c0a7fc3827558. 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/CHA832196209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec22415c9f3a97fa8248841d7672bc3e8b0234f58f67628d0079949cae7ba726. 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/CHA832196211.
Coco María Presents Club Coco ¡AHORA! The Latin Sound of Now
Coco María presents Club Coco ¡AHORA! The Latin sound of now
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a908f26c9fa7b30bf972fbe2de859f4a2868cf334ed4977f2b0b66f0d14c69. 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/CHA832398603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dda182f80429e71a42a9fe76305ef73b5923f27165d6e53af82b0cc6f5e184. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/CHA832398606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3067512e50a34e45af47badf101cc7c2d5524b2abb87881f06def6329f535d2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CHA832398607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191358739979e1febc7041d7c0243ba0d5bad68a8fae78c55f472730cb0a79dd. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/CHA832398611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd7b2bedbda7f91efd7ef8304a7ec661f19bd1daeab0c8da948459774c08f8e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CHA832398612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62550dafa93561d9830fc24b6626d871026730054da9141aaab691ffc081422. 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/CHA832398613.
Coco Maria Presents: New Dimensions In Latin Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bd174558977bacfad216f9daff6a840158c06a7d989d4cbb67c4a828ade8cd. 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/DECT11900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b159cddf8152b2359430f83f9e68ed32025f2ebe1d218a7952df33951dd9bb5. 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/GBX262400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5b791fafa3347a4eaa29bea6880d1944f06b80106b980f34f00ba06ee6135d. 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/GBX262400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa8245d42e181487093a1d5df2b902a1b306f326b42240910fa434f5c62d80f. 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/GBX262400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36aabc26028089e5162842f9e04753417b1ebf27f6857dfc24060ed67ed407ea. 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/GBX262400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3ea90c195b49f210a734c3205f5d99a9ace616fd1e5f729748e5188b45f759. 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/GBX262400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd174c734235908fa471258f77b266c6118f1c2874cbfd95ff50c717717a11d. 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/DECT11900009.
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 0xe860d384ce71d63acaa831e62349f3e2dbcea4a3d860a07be1a23af4b36efc69. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBX262400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40b18618639fbb3c421bd53a53b043e3e4515d02fecc8d5dcead0cbeaa02079. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/GBX262400025.