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 0x69ce5c48d9cee9b338aa9662bf157b3768ef06c525c1eb4156bc1b5879a83f9e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d78f882-10df-42d0-a533-61e0f7acbf59.json and https://artists.proofprofile.net/proofs/artist/9d78f882-10df-42d0-a533-61e0f7acbf59.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 0xcf760789fc4ffe53205a07247c2eb3d9a3f7d468b583bcb25188a8241cdb9f29. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/TCAEB1918050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e79503d6868781a9eb5943515a47cd58fa80cda85be2dfff23ff8e7a1a6581. 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/TCAEB1918065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fa31bab43f7dd3164f4ea709b41c0fdf4180f376e912dadb14f86a69ed9104. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAEU2071463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1690bc42dcc963c3fee9b3c3ebf806401709e8a57ff3d516e923ca23eeae734f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:56:37Z), 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/TCAES2072937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fa31bab43f7dd3164f4ea709b41c0fdf4180f376e912dadb14f86a69ed9104. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAEU2071463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf248a7ab09d390e43b72a03e9a6ef90205c772bf11ab4729a8dd7b93777eb5fd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES65D2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49671032c3582bde4d5ba9885b1e4ef738d5fa8772042c605e11ed3901b2119. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ES65D2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d501bc1862cc4549c188c6330f708adfe3e2ef31f2dc094b228ce874b85c0f7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES65D2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76f1b3031188577fe37a79cfef992b0a484dd27ab16d9fa9ba3eda444d43fc3. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES65D2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf248a7ab09d390e43b72a03e9a6ef90205c772bf11ab4729a8dd7b93777eb5fd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES65D2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98bd732755ad32a2f53da8156c7b82fac30e664d7d99d7dd0aedade471f5042. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:12Z), 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/ES65D2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae82190f953f9c0a32b3c3c8a4e3924f986363cef9b18ed116e5446d19a2237. 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/ES65D2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62dcc38e97aa410465cead80d5080902992c610f25278c272a4fde0a3e9ea4e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ES65D2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90c250271af221667463f00fc7ac53f2016faa4d7d12f486a744769a2984b12. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ES65D2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5eae65502a16fc9df3db35e6c6171aa471c8bb2e1c3407b6379848a017765d. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ES65D2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc48d2c49818ff07aa16236f2d47b9f973698b84a7984c61af1559a75a4f5e4a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES94B2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9129b6a3647edc07d5bcc00909ffcfcaca96cd25dc6ab4739baca5f64c88c79. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:54:37Z), 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/ES94B2500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdb4522a2a81ba29867838e8f36d709a9bbdd0d6eadeaaf5ddb603a9d00a5fe. 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/ES65D2000032.
Hola, ¿Qué Tal? - Original de ELYELLA, Jero Romero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961df6611b8d1588982715a5ac6f3bb11dd1821efef83e0cbcc40a342c5c39aa. 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/ES65D2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a89ed914306388d040913a47b84da8f3d657e9a6455e658446b1f2df68a26a. 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/ES65D2000029.