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 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 0xe105404db10ae31a55a5038e24284a44a58d245856361dce14b41e9a80bd4661. 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/632476cc-ed86-4fdc-940b-9a8f86d33e89.json and https://artists.proofprofile.net/proofs/artist/632476cc-ed86-4fdc-940b-9a8f86d33e89.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 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 0xa979ff739ed9c04a4015bf47c95cb9d7a1e409994374e45b40515a1939d78bc9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ES5770607130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56173757a11d7691f0459975788c470436897c39f59ff86268404edf29a52b47. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ES5770607131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6148117dc9549d13240e0fec7580641886426cf7b733bebaef278a45b0853d35. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/ES5770607136.
Song from a Secret Garden - Piano & Violín
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d11d458a4902cc3df8faa11ae1cda0409ce12a7e90a033e5da8c58008316cdb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ES5770607179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd623eeed7ca77c72d7249169aeea3e89eb0b57a23758f217535d6143cf5dbdc. 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/ES5770607183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b7c6ad9b5ad6a84cb9eb752a8c43e090b385ef66eb708c6c0e075aef04665a. 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/ES5770607174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85888b6fdaad518729fa72395a5d09f35929ded2e6b9e3ed4f3bcf1645f872a3. 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/ES5770607230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16df2a4ef192505838f50c8d7540226a25a607ed425541b22444f17285c1955. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/ES5770607409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3dd565b8e64832d9806b9368b52582359c2c2fb9607653b1f9a7721109c1985. 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/ES5770608808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8800e0e528a2c10d2022fabc541690b54144bdf2acaeae2949ea638b703346ed. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/ES5770608809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff6e190f7dbf29fcee4054c9d99aeaaaea9cc5341c77c5c0ce08a2df6d23045. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/ES5770608810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362b3adaeeecd199b4f737fe00f06c857dbb5fd5cb86a9a0e33c1a1b9ea41275. 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/ES5770608811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa124b2344d2d9d068aa095636ce166e914fec00051f42cd94c16ae5eee0d7b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ES5770608822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce9589580017b97e68bf230d5a27b2cbe04ffd13b9956002656d7971fe6021f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES5770608813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa37fbc169a287c7ce5b99928334ba07a9671211f51eaecad52a3cc8c2073b23. 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/ES5770608816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76c3869c017478ce7991b6c35ca2b80fdfa7c2153d30573f98b2e8de972f89b. 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/ES5770608821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6255207bd97c97d245abfa6c53a26578879e04826be608802ae5c0b0ee12268e. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/ES5770608823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1207f819c2c8280c39efaacdc8b6a4a2aeab01da11f2b501cda37b2d8f802e6. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/ES5770607584.
Musica para Vibrar Alto - Wishes (432Hz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b7c6ad9b5ad6a84cb9eb752a8c43e090b385ef66eb708c6c0e075aef04665a. 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/ES5770607174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b307d361224008076c21261753da2bd77ee5c5c4cff721ed829902068d4401. 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/ES5770608231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e0bb77e538c1a528cacf1bb498c2358926f738b041a57f12f2b669a4a014ca. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ES5770608253.
Frecuencia De La Felicidad (Magnetic Conexion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fac9d9cc510c90a5d2c7df636e63e81b2b2cd07c6fd60bedadab3ddbd4c167. 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/ES5770608416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241c67482022aab1b5f387440a1c62991edee4218f88ec9ffab5a3325db122d2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ES5770608471.