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 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 0x9c9d88d454676718dbc23ba2cf6f8272ed8a09bdb5e371825911ac639eb7eaef. 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/9e1465e1-a824-4af2-9cdc-98b4bcce8722.json and https://artists.proofprofile.net/proofs/artist/9e1465e1-a824-4af2-9cdc-98b4bcce8722.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 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 0xae3e37e6a3da2b0785d472033ad30abfc2bc885ae9c6e3fa24ef7193761650fd. 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/SGW502358970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10d5a36276c18878b195608acf0931c5ab812317122af6caf1f923ca4f2e8a2. 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/GXBAV2345550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6204aa74c0e84694e16196747f33e7d02ddc3767acfeb101ed7f9101703029aa. 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/QZMEN2152892.
El Camion De Las Sabritas (Los Avendaño)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c242b90001bde5796bcb08518c02722580fa1109014c9ef357e3c50e0a56a5f. 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/QZMER2193924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1fd8cfab55afc40845ee86114bbd6d3c33161089b68d55788da3654c070fb8. 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/QZMEN2162607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68d73cae01d19b48ee0ca9502e52b76a8adeb7bb2e44d8219ba544f882d819a. 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/QZDQH2140438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c75742548b6b91b7878d752a11588b546bc4778113fddcbc841f2716c6c5fe. 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/GXD7G2433549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e3cef1fc10bc97288e89a4811406746b5e4aa77d14665fe681e356dd7aeea7. 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/QZZ972472373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6e18a440f8d616e0aa4d4fe0ef12a28520d5d513851b6820c51111c43d6e1f. 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/SGB502389865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cbfabdf4aeffb170c62b48857fb8a5ea4e55022713874eead33ee88ae66e14. 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/SGW502386180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb221f0985b2634d5879f5cb8a5b7a302c9ab1bf2b8c40890b4c3260775f08cb9. 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/QZDQH2377259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4af036e8634e6fcb5b0f3b1d1ace3066d028ca549b130c806ba2080d239842. 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/SGW502327500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad6ded5e479d52dce5acb843450d51b0560a10a087df4c831440f181af2ffa6. 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/GXD7G2230089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d55fba71ab222204e81089cd4646170ce3119b7de2c014a15cbff12295e634. 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/GXD7V2529155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7206975441fb615d1b121831a145e5bcb42b1f928ffd1bde4f010c12059898. 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/GXD7V2528172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d12236e9c0d8f99e088367f9e7071e355d6187a720ddb1f3b08cdebf690f4e6. 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/GXBAV2544821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0715b4c4cfe0889344da2c011525ba66d5fe2b70b51fcbb4a3470684e9418760. 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/GXBAV2543587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec1d2a9415f9138afe56bbeaa86bd1933e96de2ce500735a1dc97c3dba59727. 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/GXBAV2580354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9ace447698b7e1299e18f88fbbfdc753d8b76316c4a607bf47adcde70971c1. 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/GXBAV2533039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff9d582389357d5a1fc44235c6647c4f44e8c70b56d691ed468d089368dad20. 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/QZDQH2441044.
Popurri Navideño: ( Santa Claus Llego A La Ciudad / Navidad, Navidad / Los Peces En El Río / Burrito Sabanero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11196dbdb64acbd289e5492016f5f33b798104a39513b833caf93bc2676e0a4f. 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/AEA3A2244098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad501ff6f6e37fc57736e77270ea3aa29294248ef1b33ec01e538c2fc0b8fa53. 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/QZDQH2436187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cd30f2ab438d858d9e71ccfa8e88095a4794eea0dbea1ec4f6a9429b69c342. 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/AEA3A2220217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea44afa54aa9283704caacdbdde6eedaf0beeb1bfc68eedd59d0bc86ed6770b. 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/QZDQH2267228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197c1bad4293e52ae19ea09bdcc08f5ac37fa9b90afbe253ab57ef7075f46c51. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZDQH2363067.