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 0xb9bb82bf2a83a5cf6fa132c470c70e61fc93a2a4fb6bca85da5a5bff4db882b2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63c678c3-4576-4fdf-a4a4-40b926a99808.json and https://artists.proofprofile.net/proofs/artist/63c678c3-4576-4fdf-a4a4-40b926a99808.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 0x492bd03bb2d2bd50d1b681cd0b4153c2a98edcf02f95abb7ca335cc87541406e. 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/QZ5FN2416229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d2fed7aef7d0322bd622a54d9c7b32737e9a3615d0c846df820959cbb7edd7. 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/USCGH2188096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3db3e45dd57eb9bed0d4424c2a8e0881d69d94a0e17fc27688e71836e2c07a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USCGH2188087.
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 0xab8af750531809a159d9a8ccd038aecc4f47d2d1abbc94b6e6d0284109262568. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USCGH2188090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0097f385da42bec51b6c8dcc4cb8bf29d43b642192fb0541a3e48848b6de3c5f. 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/US7VG2055195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460867288a3595b73ac0d563e9670df96766665936b5ded8144c5a2de5dc3259. 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/US7VG2055196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc084f3617fea4f10a5518ab96c2fe40fc1f67ab704f2fa0e66deef69772d49. 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/US7VG2055199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fc865188d1163c436902832ec7ce557df571f3f1a9c8fd6c4fe28a85f7d94c. 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/US7VG2055200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94aa034141b1aea90c63dfa66282e164aa73140c4ad52eec4400d7c08e50a02. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US7VG2055207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a19d5479fbf91e1f9ac9f5abfbcdc108b636108ac47a72a95a431a4e0b000f. 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/QZNW72409319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d602b334ebf197789a40e7580306db1b84620454882b7bbad155fcac97327d. 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/GBRKQ2409422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeee22c8bab3f6d721bff24afbecfeedb8f8c1b69be84c179f34932a495c8934. 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/GBRKQ2454469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b437717c695098f5793bcecfb60c039949c49d36f3beafcd852cd0e4a0521e4. 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/QZ7R42455431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4463e0141a668dac670ceb3702cdab0a3b60e3b03ae9d04ce0cfd86bac0437. 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/USLZJ2419975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3088387b8d9515c042c60bf5ed4b53cbb841db447613374e2774f4f9f04280e0. 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/QZ5FN2429327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfc40d6c4322bbb6aeb06a9d24a1a402750f2183a4fde0ed88d56d00823773b. 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/QZK6H2330620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15fcf970a54baa606837a243523f7455ed78620e6ec4c690046ea748c2fefae. 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/QMFME2101818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e44bf29524a40d4e07de98bbb7de9204758a08f8d49b82875395e9b0ed3eb70. 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/QZHZ62148964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b8d4dbe713e5e52e99eb2479d4cbe315eefa41b16cd11c78579a1df9a4abbe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA62309942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba67bf91b60fb7b9d79d4b4e6e352770eee330b142bd3259a59043acde2af2e7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZES62070049.
No Pueden Con El Army (feat. El Fother, El Pote, Mandrake, Beethoven Villaman, Sin Freno, Packer Luther King & Kiko El Crazy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a24138bde82af2c2a5ad52839773f8aaca14ae83074bae7e363e19d32dfebf5. 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/TCABX1443592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5025396039d1070e42cc99fb6ced32bc73b352900b7554883c94f75aabc40e2. 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/USLZJ1984362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da4e27b982c606af7dd1a15d027bd97ac22ada988822c98c1650b2d8653adfb. 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/QZWFS2431670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b63d855927a1634cff7dec75a8856d9d3e1b4b21b89d50d14bdcce75e679886. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZK6M2119972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3732badecbf80a0477442608623143be9a0f9f44822b14405060fda76ecd1d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USLZJ1984350.