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 0x51a57c35ed83e3ad1e304df4213ba46e18c6379ba6eeb0d465d70075a8899597. 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/99b250e9-a3f7-4a23-91e2-feb34765fbde.json and https://artists.proofprofile.net/proofs/artist/99b250e9-a3f7-4a23-91e2-feb34765fbde.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 0x807e5daccb825294ec247445537a9ab7db75c2509ba980a6be8bc52ac15089e0. 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/ES71G1941766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9f2484167bac044a94541e692ef7fabb9549993c999b9a19dbba98a037eb57. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ES71G1941767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfab3013ae3790f7af48d41320ec019dc05150847a2756da6968c72e759d41d. 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/ES71G1941768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3fdcb4d314ab04dc03311d4b2c1821cc2eb0a4e3bb131f625593db29f675d1. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/ES71G1941769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a031e4bde3fc931bd969f87ab800729ce4f959ced47428ddc931837933e289. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ES71G2017909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdcbda7cd8ec7c4b37d11aa98b678ea0fae842fc20581222fdd34ee051c755e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:57:53Z), 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/ES71G2106752.
Si no fuera por estos momentos, sería por otros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ccd524d5100f83f4580dcf7b91cd4096f7cafceba0d8d3bc07bd7df4bd3c9f. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ES71G2224694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e24a75dcc44872844b07d0a2ebc92599afcd25bfdeba8bca8c5680747369e8d. 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/ES71G2209389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7167282744b5fee7cefbbd5f6ed958b8a4a73444e403aa7c6db8b54a99fc385. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ES71G2224695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c67b55222a6838a4776ca43d1da5325f403c93e5e0770beee7f151d416219c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES71G2224698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f5ec18bef41c5b4d9159263b88cd43bd0e2dc2b0b9994aea17fc6a89e41b2c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ES71G2224697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188f172de68af3917f3fd01a62bbdb3fa22004292d8902aab4556ff704f711f5. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ES71G2414866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b87d534403519ca21ba46e099c1c01916fc58ad5a6557ffdd67ec8b7229085. 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/ES71G2419039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f20750d9dffa0617b48434f7e5efcbdb719436b9e0df416f9f2f2721f959070. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES71G2422526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db0b9c0628f4a2ea1d847de4226dc144f7b3f20c4020ac05de3451a86b572c6. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ES71G2422528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39914b92d942d2914ecc888eca1ed625ad1801a25d1a070cd65a8b8c3de60acb. 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/ES71G2503695.
Çambra der Huebê Çanto - Parquesvr Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1494357d0fe8ab17e0a34b86ea64c061877e820adba07f469c82df454030ee95. 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/ZZOPM2230462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001452ea82a35f6ec0a23829acab014b67ac6ed480ee080d08a8c25d0f088124. 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/ES09S2200290.