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 0x8b6cfd141e27f5f340da85e5f09b07318095ee4128ff0db483a219c2d225de02. 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/2c3706c7-02b2-46ba-a927-cdf98d7d972a.json and https://artists.proofprofile.net/proofs/artist/2c3706c7-02b2-46ba-a927-cdf98d7d972a.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 0x96d543ebd6fbcb6fc027854886c59389c4429328fba5ace83782cb0702bf5369. 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/ESA011744046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02565a755d305c88abc7d3322fd147c72f3f5c48b3af95fb994adcfa385bdcbe. 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/ESA011751734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894ec913c37bb915b201079f5362ebe2a4793c8ae836246bd47ebacd7380b252. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ESA012146440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a98926c5f8d127e29abd240bdaf188203173663233e7b4fdc1a75b8a20032b1. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/ESA012146441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09dbcc64ebb0de4ffd0ba104b06cf1e426aa837fe4a50b6897319a50cb1a88a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ESA012146442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176d9d71acef5439af7695d1d880e1694e489022335948bf5788363ed2d0217a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ESA012135504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdac595ee2ccfe9923b21416885fdf74222b59b487657f217d7ed5b3fbacee2. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ESA012135507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c52559ea8bc4bca80585c7b78726608fff8097e8dc042a5176b5bb7ae22258a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/ESA012205634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabdaa8f5a3ac75d5f184401b007dc6aeff9205aa39e769581da311ba6a1a14e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/ESA012205635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08832b2a2426b157278c21f1f67eee22cbd7331237cbf3a686008c83dfc0f5d0. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/ESA012205636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dca6fa4c46fbbee61051335662d251353c268242a15ad450a025859392d436. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/ESA012205637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00411712eac19b43e8b5c66039d0ae03d9c53941f0f678e77ba68c7c7c84a4e5. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/ESA012205640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b56e943a0389081f117c9ddf2a4bd91c93e278323f824b55167a84d84ee17a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:45:01Z), 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/ESA012205643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd345b0ee53fce21a40677acf882e47b57377fadc0c4b6f0ac87cd22d83af6f7e. 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/USDHM1904902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3524a5b95d2af8f93e590254139e1406fa72fdda80c2186bfd36b7bd4445c0be. 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/USDHM1904910.
Valle de Lágrimas (Versión Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ddfb79d6b7fc881528b84b0798fdc18e1d3af1d467d494c526ffaac368803b. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:20:34Z), 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/ESA011738692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347cbdc17fceb089e6860d1f404e504479078232a1dcc4dab9f82f4942687b32. 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/ESA011738694.
Mi Corazón Te Quiere Expresar - Versión Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574c03a6f313a34138a2115e6daf62bfd833e1f99470f2aba4f0b74887fd6809. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:34:55Z), 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/ESA011738696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67fc1999279bea1abe8737361b8c0e9bd2e6328da8fa3ffb6cb37a40f127783. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:29:52Z), 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/ESA011738698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a06486f219112e653172ee0dfac69a368892c4de24e1aa226d626f33f0114b. 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/USHM91922982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7366d961278290e8212df77812c498fe029b9e98b65f215ec6041d60e6d87e. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:28:38Z), 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/USHM91958863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd097e1bd8731f27492bfa03b50cb401a0fe51e8c5421bad4a651a4c4767d00. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM91958864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb865832633560218fde8194a63c1b2e8df1e156780e7f49e521d6bc190aaa72e. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:33:35Z), 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/USHM91958866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190f0144c6c2242db4e0c3d5787fa12944a4a54f3edfe86f9ac783a51c1c68cc. 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/USHM91958867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671622e2d6bd967274237cf5663c6babdfcb29b5d2857b6307a6833f9351dc9f. 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/USHM91958868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a59db1004b2925357ac542bf88fed53ccd42975375d3e3e7a9f4125bd32ec1. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USHM91958869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a38d4f9b6a0a082625af8a9471886ee324412d6e0796cce9a910eb47a017ebf. 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/USHM91958870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4023d5400aa46ba64fbabc24c37e95ea78fe0bd0e965664f44cededcdefe2f. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/USHM91958871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2ab4a507984a4b610da19de757a0aab29650f4f9fcf5fa30c43d922b685c7d. 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/ESA012137834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae17da97e90fc129622bef6ee96600dd28a7d58ede4f2612c123e69a2a980899. 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/ESA012137838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426b938edc0367d46372cff538c4185f9cd4a2786d10daca58082660c338a82a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ESA012137841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61af6bffd3c69ee0ef0ba9b3774d76e9608bed9630e0e04dffca11cc796a68e0. 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/ESA012137842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df5ea6912c5d0520ea199082e50c691c786ad39137fb67741533f5f380b2256. 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/ESA012118912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b60be57939b49e8bcef96a464ccc54439bd8e5183402700b966c160fae2d75. 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/QZNW72303086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc049c18456439ab0bbcc227f389867607bff7fe8460955c88c12465ffa7ae5e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNW72303087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f6d27dec216cbbace306745737408cf6795af3e7348a7e37e0e3baa88ce6c3. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZNW72303088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94bcc24064edff76fe1285f09a9869be250cc6ce7b9e5924f08d7d0f7cdb987. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZXLZ2513121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd0b1a2fc999d51bfdc715d91f70df409e6ee5b1a432261a88f71d6d5db401. 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/QZXLZ2513122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b09a61406d6ae8e23dcaf1926ec0f1ffa35a8153fa36ce9bc33a1e6db47dfc1. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:31:45Z), 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/QZXLZ2513123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe175b0266544aad7fa053745b992a41d6ef567f9d46f60af748cdf1c823db1. 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/QZXLZ2513124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe45ea49f56b3a2a7c448e6661b0964169dc949789ca374da674c5cf84e3f238. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZXLZ2513125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8227fe8e0100ee44bf3271574cac304e16210c35cd23be10ec0dfa1b6474a517. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZXLZ2513126.