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 0xc8abc4082c5f7e1a996ecf0c250f5e709c96c9b77f9571d15921bd81a3431444. 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/cca45ffb-a306-4581-a774-7e259376550d.json and https://artists.proofprofile.net/proofs/artist/cca45ffb-a306-4581-a774-7e259376550d.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 0xefd4a237fc8eb335f576fb0325999ea9a3cc811974a757fa77a7c7bb724d2859. 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/BXYGQ2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe39016bc69af8d162897bc12027f313da42615b77df0cf5d11beda67d82f14. 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/BXYGQ2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610bb00f5bdf3b14e329785dd9929de6065d051e005e51db4b8b0788e6a96c70. 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/BXYGQ2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68c53e16dab4b9ff93185189210a074b7a394af0e0df7f85cd29060d20d87ea. 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/BRRGE2400240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186d0ac602a27bcbb3834a0653b3910221a0b012ae2dffe3ff1155dc007b36f4. 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/BRRGE2400242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603d3630101a3cc87e3a9473fc11432ca61d8dd10a243d92fd1e4ce67fd2331d. 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/BRRGE2400244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b453849032fc434d073fc92ce22a3bbdc3b65b46ae3ae14991fe68d0734b024. 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/BRRGE2400246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa706655ecf0d468c92f0d4e8fb2c774d8770b13953f210d5bfca7647c6c1dfa5. 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/BRRGE2400248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289d9a36614d547b82133ca9d4f505a27aa1be3d8c6e731497a371d2a75d54de. 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/BRRGE2400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea453376ef55eab4028c9ee7286b665894bd15b80adffe84a8c1844d6c2683ab. 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/BRRGE2400252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb947956d34b0f4048661e9200502ee3b102e9d9c8b1e0712a7984c5b8eccbb3b. 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/BRRGE2400254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e56d3e8672ff14a8be9773151f8995278bc8539dfcebb950ff049673a36a09b. 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/BRRGE2400256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59de2bda8c28bdbf8bfaa2d7e01264539dde29914e1aaaff80b4d85e24d8fca. 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/BRRGE2400258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa447a07ea978771b1ac574f960e3125fb1320dcc260c52fac05e60bd4d50fb. 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/BRRGE2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3939c672c83a3483051932f51615ba003f9c15e0328a1ff4bfa0fddbf5a76d9. 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/BCA7I2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a7f7520c7620f51a793c5c09bae345d02bb02a9cf794dc94141d7f5b2b33fb. 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/BXYGQ2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a822c557505316ac7ed741cf6f978c26446f84807fcd1641c8dd3e82f37a9dc. 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/BXYGQ2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3f89e046cc2d9b23458889b131b760b5f36db2f7d99cc5f54c1dcf0f4fee3a. 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/BXYGQ2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c5e67c11885ab84f4631f86ee7689bc7bb7e1100768349462f284b058104a4. 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/BXYGQ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0c8963303e99f80550d75e0d34307521a99cfed0f86459dfe6eff476f32ba9. 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/BXYGQ2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e45d4fc6a7f9a48e3820314f198bf061254ad244885b76e0a4230fa54cb474. 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/BXYGQ2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb237c438c0929c5301b82ddb70e87231226f4811dec6fc478d28f9cc8407830f. 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/BXYGQ2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06af7872ca9ac2b9716c937a5c14d71d123fb1729c439330e55917012497aae1. 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/BXYGQ2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb109f68306e97795aa333b2422b7e5bef93ae2456e6e3a9bb5af26d4fd3e7223. 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/BXNT62100565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c0c8643fdf21c5b7beadf2c2db49c9bdfdd51468b95eac24faa0d52f29f59. 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/QZHZ42164713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85746d935569e00064dc9806064e0d42c73ef23a10d865f6f33a8d70434cbdb. 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/BXYGQ2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58411c29a35441aa3c268b09b41ed9734228f4a362dbe73c0bfa9b6323fbfd3. 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/BCJVY2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc399ea1acbe5b987f7165140a76d8391b827ee4787d3673c5f5432e1f392e279. 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/QZNJW2099809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891a5dffff00531c154aa1faf41709f8202a0f08564e268dcb46d4facf998ce5. 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/BXYGQ2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1f5fe25c1414996a08c0d630b3add74b5281a112a1ce449abf7350035294f0. 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/QZMZ92071442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240f33fb6ba6f00d37b2fc699339d65e19ae0df8e754f928aad34e900c433b41. 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/QZHZ62089549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1d2e5f0126eb6b2ecfc1141f8800315f9572881d7a226c3b751862af27042d. 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/QZHZ42058087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b22d7be2994daa9096989b07907633d2bd384f86383d922e94738ed101401a7. 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/QZHZ32031202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647cb5f289f51a7eb3097461b13a2c96b637f5092bfa4c0f6734e5fba34bd129. 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/GBLFP2059169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38abfd0c5661f1ad51150c6482af9cc0729d7d9c09e24ed817ef16864f04e803. 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/QZHZ51908605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d6a7fe1a7d60bd52eb9dba6adac5d2623c075f16afc0ff5b0eba2c1d32c76b. 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/QZHZ31927593.