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 0x9628d175f1d926cf2426c077bfe5330ce9dde8ec8ce019bdfb347214bdeaa5d7. 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/1e2b9374-e300-482f-a89c-de30abf41f3d.json and https://artists.proofprofile.net/proofs/artist/1e2b9374-e300-482f-a89c-de30abf41f3d.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 0xb1acb4aa0ecd23eb9449a5d7754355018d903b14cff9f7b33d19cd7b68f57c3c. 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/USL4Q2077270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b72a8a7b2a7530fc01432b5c1b329280f86414dfbe3c699a8260e5e8e77aa8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USL4Q2077271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63347db52dcdaac63868055fcf6010c7f2c5bb70ce84e3e44022d62437ce0dd. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:33:08Z), 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/USL4R2055839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5116f6b1edae0386b3ab4883ec082856438154fed07da1b6e81448a36cdabb23. 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/USHM22150564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df0d32d1f2dc3bf152b1e74ebf2ca84bdc7273aa75dcfd049cfc93d4a377680. Chain 2 (Bitcoin): anchored in block 957846 (2026-07-13T10:25:43Z), 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/USHM22176406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e2a0e60845164f18242187a9424472a981247c7160495429a6ac597b80b771. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:19:03Z), 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/USHM82190818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ae211dca799b0eaf113f10e7155c8221f5bc9a202c813354e6aa67a0813280. 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/USHM92184961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1e38a3522f3a03510209891cae298f06b440420ba7efaec28454c6ad92ef7c. 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/USCGH2256198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d755dac69ff86776d4953c79a483d24d77983c21dce15a1b91e9a5169355002. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:38:58Z), 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/USCGH2291639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d60bd23d90869f85dca11caa123617e41b3912e957e0af9d2930cfc9d89af1c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USDY42230261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6b6fa366d16b618a965c79eb0b9e20a966f7a0fb4fb45141b557d9be9ebe00. 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/USHM22215562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a570eca7e13e061e32ce3bece144c09d19013b9c1d487a688083d5ce53c458. 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/USHM92298449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71774ad5b5493048618271c4a990fe014d13afc6a137efe74cdcaa5537a262e. 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/AUGBT2232041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1417ed351532de513a81559159374cd41178e91811db072dd22b0456b046b547. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USCGJ2324030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7da87af153cda747f622cefed3146ed929eea1cfad47028d6f12d0e4d1c9d3b. 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/AUMEV2306488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd6684ba66d859e2ea6f490cfa870dc607a324d260a8c9d413b7e3138e29c4c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/AUMEV2336613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d716519038171fe8c1fc8fc07444a6cc1064afa8f0e6e209c83ee68fef38b6b. 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/USDY42395521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ab762026c6defd4ee30b4aef1f061e80fa02f63b883c52f053abcf7199f7a6. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USHM22387570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69a1b51c5b67a1589560c995c3ab33b4d461ec2657651d2f5b8e3f696deec51. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/AUMEV2355231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d87b6f17aaffda7e2e6957a31dc5e2c6e14ae88e2bfd6efd75b91b4c3186f76. 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/AUMEV2371706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b309a6d9ab94a75e468d6a368169fe4479701415eb6513de5428cebeb0f88e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:34:44Z), 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/USL4Q2328580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216c30b80d1c1dd4980ae9f82220f7591c814a980ce6eadceb97863366015f41. 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/USCGJ2444127.
In a Warm Place (Flute & Guitar Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a024173ce42747cd6e51388fc95703789110d9a0e4102b88b6f1374c1ab480c. 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/QZZ7L2510019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73a6187c9dbadfe8f46bcc674c1142c13b845dfa275464374b85a1bffa2e1de. 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/AUMEV2366437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d50c0ba5a5bdc2391964416722eef87158870822fc69a2da75fb9388fe470f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUGBT2207208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa741de674e7e64bfd8e65fec2502eeb71ed8fc8b92a11fd23248b2cf7162743f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2260895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23075894b88cc82db4cb0ed36f8682e0930f00bdbbce94391ebeba68739b4bc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2220008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5ab844958bce6aad3d9d05278e11b41b36b4df7007303938b5a016ba05b30b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GX5MY2214725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd714345d00f119ba57ca3308c3f9c966c73c6450002e6d9108ed37ee7df9f890. 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/AUGBT2444355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5901a9cd7c15eee21b93afa8fede48cff0eea87b6f6b2bd099a721216a2eabe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AUMEV2509026.