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 0xa1983f41253e213c266817c3a348f244f83aca3282b2685b62e80a6a35dd1d0d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84f0ffa5-b186-40fb-aa54-d674899288a1.json and https://artists.proofprofile.net/proofs/artist/84f0ffa5-b186-40fb-aa54-d674899288a1.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 0x1a108d1750fd1a0caa75b7bcfeb1500c258eb201b4f2b71d8349c660bc4ab23a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FIB2E1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a9e672f9330a0ca48644e82c6424b5f753adbb3ab86239a1059c8e17b416bc. 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/FIB2E2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8810f3d98c00fe85567ca9b85121e8c57b302e7e4cddcc0b8635292d69b4c558. 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/FIB2E2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50639bea378029d1cd8206cc86eef74c89210bfc9a6be0ad188204e68b7e32d1. 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/FIB2E2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c448679fc4511cfccdf3f9c2ba3e79c5d1ff9c154816bb0e966fa0e5ba132a. 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/FIB2E2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa582e48454bcd41767369390a2f23271de3b2cb0cdb53d5191eb9adc67aa3be. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FIB2E2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a916b23a78ae1417b519f9bc0b9d1ef19b88d8fd4ec6c19003b3a1574c75cd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:52:43Z), 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/FIB2E2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d01435b3cb7e1a5f7dd64080a31149dc07c6f6b4985523c5f68343f83a47e46. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:10:43Z), 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/FIB2E2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6613def76d72c14287adf74fce05f76b5fcb9091e72e8a6401728ad184c49631. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FIB2E2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c403d08f75e5d0785d668f364f63be5a65aef86c30ff4ef6e5635929b37dff. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FIB2E2300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4500d63f375459b58a00d467d592992c9b17740397bf70b1444be1da422fd9. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:39:35Z), 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/FIB2E2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a916b23a78ae1417b519f9bc0b9d1ef19b88d8fd4ec6c19003b3a1574c75cd. 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/FIB2E2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e99d6919ef6d01fb4edf591e96e0a7414f3312c93d1d3ff76c65dacebad6e18. 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/FIB2E2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa8613db7c0d3fd10d8d5fddaf5548a0f2a8676d2b0990d93d020c77dc24df7. 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/FIB2E2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740ea91569608dc4ca9dfddbcef1e9ec53aff73e16e90ff199decad797160652. 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/FIB2E2200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6613def76d72c14287adf74fce05f76b5fcb9091e72e8a6401728ad184c49631. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FIB2E2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719e0409011db18f9cef6a90b111d3e9522f042649be4e7077647e4e6ef5c13e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FIB2E2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c55caef598854c9801957b7cfba646639ef1709ef5560f96baa84dd5bbb553b. 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/FIB2E2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c448679fc4511cfccdf3f9c2ba3e79c5d1ff9c154816bb0e966fa0e5ba132a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FIB2E2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa1787893b25c01e58e9e6f04cc1a9f2a374f835f07248eede6787f84ebe589. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FIB2E2400063.
Etsin kunnes löydän sun / Tää on se ilta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fa3f6b68287d73d9f94b0856a1990561b17a902c8c07e7ffbb8ad0d7ac628d. 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/FIB2E2500023.