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 0xf7020f83f6539f61f3830f9df1fb8a3b338ffadcdbdd39738055f8fc2c8068a1. 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/89f5c561-b4e0-4ea4-a1bf-41e2e3dfa2a5.json and https://artists.proofprofile.net/proofs/artist/89f5c561-b4e0-4ea4-a1bf-41e2e3dfa2a5.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 0x0420e839b8c9598fa22bd4ca4b94b5e11124c51862c3dfa0c783437123b45267. 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/SEYOK1763233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eeef2545687743cfea6c9c9ef9b191b14d475b5ccf7e62762b121c77d0affa. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/SEYOK1763234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7d86303b10b6b4c22a321854209cd18fc56e7eeb8eb0081a70275dae6e8c2c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/SEYOK1763235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08961ab46380f45290f47045714594a65cb1a3947ce6d43cd82b5443f4cc0901. 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/SEYOK1783961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d591418183ab9e9adfd7e9d2615cb5a67ba71733a08f2a9aac0b428f908646. 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/SEYOK1783962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2502cb4244485606e92431eaaef27e0d4b72c214a0d9c7a24891b693f8fd8c. 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/USERN1009877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6929c237a736c30f2ebd1acaa0143c3e7b5c26ef3aef3d99d1890afa2580ca. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USERN1009879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e30963180b752526d908f8665450958990f0cf6afdd9b44ca25cb4eaad3aea. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USERN1009881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53aa105f3140183450d539929405d588e3fac28b5fdfe8dd027a3431f433e0b4. 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/USERN1009882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe776e1a49fd3594783f5a3fde4d5002b17ab783fc80eba0c5d35c65748f12997. 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/USERN1009883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a02c3e4cad53fd678a8976e8b3d67c8a93fa8549db83bd512868efd8856d71. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USERN1009884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e182a3700f8656a7629a517e3e2afb6b667a4260fd5dd0d1158888a7434c83f. 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/USERN1010141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecd249eab664bb5ee8c44ca6699adf9b2179d13f0604e15f0f4b72d6c55bae8. 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/USERN1010385.
This Summer's Sorrow Ⅱ: Growing Old in the Waiting Place
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d706ef00eac468eb83f5713ed48e07fd720614847eae276a864155b24d2ad7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USERN1010384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b92156f3780c0a5e3480f5b1f9cce228edb4a7c22f39769bcf68693b878d152. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USERN1010386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb970015589089f2166cbd8228ad95a34d189b36672ff3da669c4e3196305bf. 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/USERN1010389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19858c0b32b478111783b5a6cc200ba12d4162cc640643487ca000391a5c94e. 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/USERN1010390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230da5699510ecac23ec2b473e686b7553843e1e7a4c20af20ff311593d9e2d9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USERN1010391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43659736134036851172861d504cb6972a1cd10e5d8873dab3428bfb31ebfa4. 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/USERN1010394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04101c347dee0d3adaf9614ea150dd4ff9f63b957487157c19f5a9396b6d03fe. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USERN1011086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb481f101e37627d5f7ebf7b6471e2f8ce4b2538e1bd854118c7dbaf4ea2358eb. 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/USERN1011089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c22580d242403cb39403b8c0ce8deb649c16d133ad43a1c60d0e1f313b8de2d. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USERN1011090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9cd55801f6923c853806017498eedb6c17321269df91434d34a393d7a24e09. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USERN1011091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ae999dd626b53e6ee381dc36eddeffc3909769bffd2f5bb93606f806704765. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:59:19Z), 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/USERN1011093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184c107bbb2417360ceebc6aba5ff4ae102ca544fd17cff3ff955ce5c78249a1. 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/USERN1011094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40b652bdc90a918d842231c499e965f2d4f07e8c98bd9f185176951a55ce4fa. 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/USERN1011095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3e1906451704006c8135c377a5c9034a2423dedda2d4f864a662b3f7d35016. 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/USERN1011096.
Greatest Love Offering in the History of the World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b95f5efae22bf84b939c31916572e74fcc30bb50e96efca692f61c2b028e279. 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/USERN1011097.