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 0x4c080bc544a7f01d51b686fddadc124399d02e085d0b2d1b1226a1b5f002448c. 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/78d3bf0e-1cc6-47d7-9b77-1bc2446fa0d4.json and https://artists.proofprofile.net/proofs/artist/78d3bf0e-1cc6-47d7-9b77-1bc2446fa0d4.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 0xf388e4d58b491418cdd7e514c6610dff9c9cd23ea04d63c5bac0f4de3a9f06af. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCAEC1928861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4c6685176ad189fa2b377ec5a21363262a97d5c157f003f77bb578eceb5b2b. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/TCAEC1934060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2bbe05e5c084f550513d6d8e82610a0b0b812967404ace1e37c21f06185dd4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAEC1934367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1500b968eb6fd62c7b0c1ebfebcfb4187486c914e872f96d572ecd3e9c897d8. 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/TCAEC1934709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80a3b900a1d95f3f10991256d293f7332389079ab41b680c959f33e36e7f761. 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/TCAAZ1140244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75942fe4100f9a884d53df4425fdc3a2c688307dbdcd260946c03ba3458877e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAAZ1140247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fc2a5d33ee9a8eaaad3368dca95a09c557333be6f96c470ca50602f6825d7c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAAZ1140252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c4fe19f817dcc79aaf27f171f9c54f4c2f2cdec19e68015ce24c56760875b9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAAZ1140255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ca30f3f4e95f01a4706bcba65d90c4cde08928d9d3804c9ade906b4b962bcd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCABI1219665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888375f5d749bb2a8e47c8103d08f6c698c5a4a282e4f72cfe9cc7fc4c2ef76a. 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/TCADL1894822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d5b8f1d99f9fa110b83872654e4eb3bd24b7a58a3969f67b58ced9119b81f5. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/TCADL1894827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb538ddd895140e6f03eab82874e4fb8f59dbde3406dae84d28ac71e1993176a1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCADL1894833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3276fc3a0c79e6d1051ac30bc6bb9f743bf9ec8f0bea40e9eabc33a0677148a1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCADL1894841.
Ya Lo Sé Que Tú Te Vas / Costumbres (Homenaje a Juan Gabriel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626eddcc46f68b6f284a8223bd20f06c3b5b29f340ebaa8281803ce86c93f00d. 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/MXD781802257.
Homenaje a Juan Gabriel (Ya Lo Sé Que Tu Te Vas, Costumbres)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb024a70a3f3f15f2b5d486d0b0e93682a04670b097fd5a9649131233fac20bf. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:11:02Z), 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/TCADI1769351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fa7d7f8c6374385c92cdf0626ec73727b09b6b7d0ee5dc8b7f2e8f4b0903b0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:46:26Z), 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/MXD781804354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd7de147d347a81f7268554f3690058f9a4a3bcda0525c2879374a9e3e59177. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/MX3141101334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee4ff923421dde2251f683d0b64c10243ed93c295256055cbf06af24f3e3137. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T01:00:16Z), 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/TCAJM2560509.
I Still Haven't Found What I'm Looking For