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 0x653b765735f2f0457bda625c544bdf66c470158b926dff64a5001d022ad01917. 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/13ea88ea-fc3e-476b-8f63-8ec27c30ff53.json and https://artists.proofprofile.net/proofs/artist/13ea88ea-fc3e-476b-8f63-8ec27c30ff53.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 0x0eeb7aaa08da2af251b3cadb5a71adaef703f00ee2c5d673b6a7a50d4bfc2500. 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/QZHNB1915346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e25ecbfdcb00d38f40146ae3ecd8a93c0ba00f84b3d3cf5b5a4a600795f20a0. 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/QMFMG1317569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7b9d8dc6ff7386b7d94905c4b5f05be58319a19f1b36d2fa5fdf8f926c661c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMFMG1317570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38c13dea2578a1b9ecd62a6c18e05621d77dfe6883e96fd728185fa7e906133. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QMFMG1317572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f29daac0136127e84e8f1ee0d20d7a43d3dd65548ef9227ddfadd952f099b0a. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QMFMG1317574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b38c13aaf2b77b19027cd8e36261dfb91c832658a9ba934cb564a7d3a238d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMFMG1317575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207f3947dbeeb049db85fce0ee6e37349a9f8e2377a73550c6a9303811fadb5d. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QMFMG1317576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38cd57bce5efff9c119beab5729c3f8ddeffe76fd9a1cf1b05a4bd4b83f9675. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMFMG1317577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904a98da6a5d2e6fae7859fc5750fbe2858180b1d90fe503a1bec3b9af94b139. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:13:29Z), 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/QMFMG1317580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983a4945d69bd8aec9c86a91cdc8336b8644f1cbf376e405f7c2c897c08e3d48. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM7281423505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bbbb7112074241e030331263612a0368adb99be31bcb9e0b036d3185e9eae7. 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/QM7281423507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a8043fe10c1776da0e2939211d5c847ca02ec0cda0fab7577ee433b9a722e. 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/QM7281423509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9fa60633ef02ffd3e44df1372b54c0fc2ef3620b6f86a7a74174b36b5ddb16. 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/QM7281423513.
En la Pera (En Vivo en Groove) [En vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28db31405b2f8437f55fbae6f48d93fccff2cc7242d9689aeabacda255b8e7c. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZ8LD1752195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2228dd65b76b9f0f7d9ed7d179d140e71ac62058d2f6f9a9d415d9915f5a64bf. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:21Z), 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/QZ8LD1752197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72273f65043d6982e6061157d4d4097cc3e4190ce7cf581a9728f3b68666e8fc. 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/QZ8LD1752199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4806284ca63a8ddce3fdeeec781adc5cb5d46d71d7e0e7b5bdbba49a26a54b98. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:43:23Z), 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/QZ8LD1752200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2703c92497a894085c6e0e28230553b95d0800b527a2695ccae3dcd2162db2. 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/QZ8LD1752201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946b05b02e295d7d8da0ee35d0277a1a23d7166325737e37903fb16f9c1c7767. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ8LD1752205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c911488d1cd027758f54670c079e25d559d38799279d28c15d8451db2723d5a. 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/QZ8LD1752206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06e92ef3d7529e053477dc20f0d0724e7fa811ead9288ef3409e4e720f4644f. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZ8LD1752207.
La Danza de Los Mirlos & Porque Te Amo - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f7cd295f1d2b60797c7aae5269d753bb1ccdcbdb085c6deef530df30ed6789. 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/QZ8LD1752208.
Como la Flor, Vienes y Te Vas, Ramito de Violetas - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ab1b5b57a9b93ad88bc92b83517b54ab981f27b7dda75f5c5d780525d8c903. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZ8LD1752210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cabf325715a1d41e6f3ea1f117fc071d90b7468693745dd33f6cfaf5dfcae38. 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/QZDA71889900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab63a382ef7e43d423c7312005032590b628f1756e67c3ed1f9466d53aaae920. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZDA71889904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b651495ceae3562fdd14e5889567a9c38e601144a6fc68abaa195aa724c0535. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:20:31Z), 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/QZDA71889905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ae6ded754c25d8f6ba6f9823beddcc65c9bc50a3fcd0e58d6a765d9424f235. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:00:45Z), 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/QZDA71889906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7902b67ec938e561db5d3017bfc08afb5bb9b3c860af5ce888a17e53bc7dc79. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:39:36Z), 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/QZDA71889907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7a995f0133d40e77c8344a8e35f6f8bb2684d30036e048d733ca12bf18926c. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZDA71889908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccf5c4b3b2c95c58a3441ebd86096b56573f1b20e606b6a151133bb48747090. 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/QZES52015314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88fcde8bde619694cb23806763b62e08ec7c0e3903cedcfd802ccf649f71e3f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZES52015315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126ad4a4fa03eca8b99afb7e0b22018727930de92a859d72a052206dd47259fa. 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/QZNWW2000828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7746f31c7e709bb7c175518259ba235a50d61b78876aba73d34a8f837eadd7. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZHNB2102270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec26b1434b5bce3d51f2148bc3d99c9cc3d4915b82109af3a6ed61b06e91533. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZHNB2102271.