1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5e9e8baada352ebda1dce3b2a60214fd8cdb70099b5fddb95139a04e3019755a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4918c3dd-6746-45b0-bbc9-a71cf49ec90f.json and https://artists.proofprofile.net/proofs/artist/4918c3dd-6746-45b0-bbc9-a71cf49ec90f.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 → block OTSBitcoinBlock must exist at that height 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 0x0ab755e6bb591ca01487c5afc60650a5a92403be223683f566b9c8880df1e9ec. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GX3HH2496419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4e1cad9f95cf8e7d6e2efadf750217013a2481a472ca8a44af045293da1b41. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:00:58Z), 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/GX3HH2406635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5b24977780331a1c5e5cc2ad89c6364654b4dd23e4f0255c452014a31e32d7. 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/GX3HH2447852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4a47236463c4fd928525959b2abe637cd8fd705614e9f108d4c51e19ab2bd1. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:36Z), 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/GX3HH2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa99fec3a2830116edf2b6fa3b42c570b6f79d828d167eacc728a305f4f5300a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:49:26Z), 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/GX3HH2460484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb83f5b410bfad92b9ce3598af6fdd7b6388dc9f47c9e4eebf98941b4f41d3eb. 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/GX3HH2436833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbafef3c3bdc31a926a138e12372b84c07f54d6f36db8442537f076b64a61bd. 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/GX3HH2480080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d579e33707c6b094d69bfac58dbbeb7db738e3097d92713b78990711afbaa3. 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/GX3HH2465960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa243243fbbaff52205a317ff56adf0a5c3e1303a841b4ffc41b66972f3d30410. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GX3HH2458810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d8dfaf87ecc81cc3abb70689ada9ea7a1fc008d60e50dd9f7e3cd31e0f739a. 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/GX3HH2495085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19b632f4a2da6c1b7b84c0cb78f5a4cdfacc7a3a9232251b1378bbd63b6b329. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:00Z), 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/GX8LD2501135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8b77d34dc9c31652e7203bebb5337a44d55b03ff6ebbe3dd435ecb6d947a6a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:41Z), 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/GX8LD2589518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68da6a0b9f4e2e08f6e30246299233b6b471b402da6ba5679ec498bf8de2957b. 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/GX8LD2522013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a96751022b8a6ea9424229289e0aad04b0e7f31a082ec390201f56ea1252501. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/GX8LD2528194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3a54eabd468a34619183a68f5177f432e109f662e0e49cd716fb5bf8b180af. 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/GX8LD2562528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e36e2cca2e2363be31aa9dfe0a53243b3215205e1985160f40861a6a6b15e72. 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/GX8LD2595282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65242892cba0630c2a5f71a65183f808da37839699a79447c56a9204621979a2. 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/GX8LD2592394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52eb38aa1210fb95fcc8c81b991a0e340e617f24e65e939ebd8cf5e74857cbc. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/GX8LD2531182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb033e0bda147da8001ac0110b76689e1e68220108e0fce6cd674e800a9717f. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:58:15Z), 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/GX8LD2536291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafafbd0a521dbdad604f61e927280336c5962c7b1eb15738587cac87902bc795. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/GX8LD2505311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0799b2da145d9e5c498387cde437c93c06115d7c3dba71e158e36212e7940573. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GXBDT2559218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2dcfd5f3f12a8dbbd723907a404628c8dc90e83eac3eee8ae237d2ef80eb52. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GXBDT2583612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f145bf1a4bc9e30921b95bc34c19c0306aef801e619ce8263f7dab7b2bca941. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GXBDT2520273.