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 0xbc4bdf19b877a7a211ec388f3d5115ec55fdf49594dddad9d8466a046ab4769d. 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/033903aa-9821-4930-8d6b-d30b18902a0a.json and https://artists.proofprofile.net/proofs/artist/033903aa-9821-4930-8d6b-d30b18902a0a.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 0x8f10c7f226f0e7fc82422fe7946d8069f4169f01ce6443f807e9580c642bb253. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FR6V80445410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b6fdf37856242ba3456688599b19744c33a21de60609a345a0ff973d3adcde. 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/FR6V80974161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4895c657410392dfd8f273e4d7b9ef500344ab8db5f0e1d7fa9e94dfa33f07c. 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/FR6V80916785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53260650a3e5588b781dd09f64eb42add6bb6f4bdc8d431256bf93218d52425. 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/FR6V80803222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f10c7f226f0e7fc82422fe7946d8069f4169f01ce6443f807e9580c642bb253. 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/FR6V80445410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa694494a74fe38b853a6b9cd51ded76572c15860433ae5ed0c902900a22e8f08. 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/FR6V80445417.
Saca-Saca feat. Cosculluela, Carlitos Way
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32d876d6ba10852b333086f6b156094dd5d3396a256c6e073a0d98672cdd1b7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR6V80803225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8964e134bb5fdbbbece32689349060c353342e7f869eeeccfcc2ac9b95747c14. 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/FR6V80803226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc23797a746cd76dc7078f7d13c231efe2928bc0d75d3144735dd6b841c78c3b. 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/FR6V80803228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8715e7d61c4a6599762bce389b2086e9cb01199929957d4fbcb6d44fc9fd7981. 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/FR6V80629137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504f8dd93ab17be9a97e751c2fe4a2ff5acccd6fd55edd7ae965ebfa87bea0e2. 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/FR6V80629142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c371904fb57150aac27ced7a4af155d7755c64fdfe175afab4ed19dac12f34. 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/FR6V80629143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3e5bea3943c7140258976129dcd64149e0d9262b4b5d2831109477d3a15406. 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/FR6V80629144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0584268832c69527a34d828495856192aa92304e050d5a18c9b7572bd3c49d51. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR6V80629147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd499916d7486589a3e322ec43449c71736e51e1d933bd49687ebd8a048562906. 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/FR6V80629149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697c7785afb98ba335644b56d8ebe8a62fe716e07673cc5fb352535c79a5ec77. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR6V80629152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad97244eeefe545f54f1780781cd70bf35e87da68dbd6fa63615807ede46d23. 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/FR6V80629154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bf2427335aff09253f7a2364a503f2075cfd62af28f0c2eb5c6c87fff16c68. 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/FR6V80629156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe9845604ad07f1d1820d4a32be5817d33de938b9f08f96f8af7a48d36ac511. 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/FR10S1778371.
Quedate - Single (Prod. By Well, Kalin & La Muzica)