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 0x13aa2aea8547c79655dce3e591c6f68ba4c3224e0df00c7bcb36802b7032e784. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d58bafc3-6d9f-4eac-819b-64e46bd3c470.json and https://artists.proofprofile.net/proofs/artist/d58bafc3-6d9f-4eac-819b-64e46bd3c470.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Potpurri los Freddys: Me Dieron Ganas de Llorar / Me Esta Doliendo / Dejenme Llorar / Cobarde No / Que Ganas Tengo
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 0x57fdad566562585d8f756f7c8cfc455270a0dc43a9c589b30677b1fbbdd5de17. 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/MX4971507596.
Potpurri Acapulco Tropical: Candela Verde / La Hojita / Cangrejito Playero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489fb224fda7401ffc5dc040b0017e76645406b531998d5a69233d0fac2eb8aa. 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/MX4971507583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95ecb690fb09060d19a6351d423507e4728e6aa09b5f4b567e3f6ddd31a0386. 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/MX4971507584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5127f90e0698b9dae2f300f18e1e310cc3fc2473a5557b93a84a6779bbfd34f8. 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/MX4971507585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6a8207a909857cbaccbde2cafc896af3bcbc43f6b9db97bdb2d1faf06ab321. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/MX4971507601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3469627f08adb7d268b0dfcdf0ffb38b94551dd2de38310a547dd154475b336. 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/MX4971507603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4778cf11c1f8ef3d7dd7c57d926d5d5f76186f1cca50f0f29905ca114bc0763b. 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/MX4971507605.
Potpurri Cumbieros del Sur: Tarde de Marzo / Por Tu Mal Genio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66daaea6b23cc7d4117a40c3302935efa4c4909c39537ed8d8f8d6c08a2c9ea. 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/MX4971507607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9257e38bd84e6753f750ceee1f11f1ac0a9406084016acfc9bebf6e461aa636e. 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/MX4971507592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85341d8e768b51e72cd38d583bebb2d3bd9cce95e513e59e808e703a14b79ce. 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/MX4971507593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9206136a71302fc359dd7d932318ba6735039902492503d4e8c2143b67028db. 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/MX4971507594.
Potpurri Luz Roja: La Brujita / La Gorra / Sacudete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267525f07ce65df36cb342f3b6a31c012fee60c34f3b8a176d924dd33b960dd6. 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/MX4971507595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd98671244671181628afd0b9cc9624b34b465e583a291a89222eddb4c5210d1. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/MX4971507580.
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 0xd084428956ac7a1b14dc730b877a5c9d4a702701f3b7bba2919dc148dbe16b56. 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/MX4971507581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4f277d5d28c86e3dd495cc7f080af76e5012b27609b17462dfe3ed27e34450. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/MX4971507582.
Recuerdos Santaneros: Mi Razon / Estoy Pensando en Ti / Te Digo Adios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbe98eb074660358649bdbf52f1b6e99b085edc57c9c6cfbc7c65cf9f295e50. 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/MX4971507599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695cf34117a2dd920a67061803553c6ce06495a2384e52a05b7b023fb9178b38. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/MX4971507600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97351c05fc5e6a827dcb95e1e572266384ca70c47d0d1ac0a63d5e5d1abc4da. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/MX4971507586.
Potpurri Luz Roja 2: No Llores Corazon / Por Todo el Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379abf9807d98fd25a74fed764c6556057e3513498051f4bf6b7a15ba82d2338. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/MX4971507602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee77a55de7cc1220587e908bb80a4d9a70903cf00a264f2fb7acf775bfe58ee0. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/MX4971507587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fde5f40de0407513f619f4739b015d67df6e625a316608ddb93d3c66cfa7e7. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/MX4971507588.
Potpurri Tigres del Norte: Unidos para Siempre / A Manos Llenas / No Pude Enamorarme Mas / Prision de Amor / Agua Salada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af29c34611897e53990b405d4df2e87b6c040dee0fa6e64f82f7bbe1d91d678. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/MX4971507604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37c9b5c8deaf519b81c9de7ecb7fec407a5073622c35e03c2aea519c8f254be. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/MX4971507589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae52b27e809034ca689c66e064d295d35421f5bf3e3b8cc8581b5ce9bcd20891. 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/MX4971507590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9739f986f81e51b2bdcdbd02777d4eceabbb42e4995e98e853920f2f54967b9a. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/MX4971507591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa208ba767275098a73f756fd5b003e320a7e92c5b01b592b9a2ee61db685e5. 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/QZNFJ2201078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38582d2518fb8822dd25c953f4ed20c922c5b00a92d8abf854acec0501e1cb8. 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/QZNFJ2201085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742440d689b1c66495d97463aa2c8c03247b3ae1bddb35e782f0f381d1563715. 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/QZNFJ2201097.