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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265e7b6773623ed34bbe86266897f1c016e961ab5307ebbf467292fc4085dcc8. 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/11f8ebd6-2f60-41aa-b718-795a92d17fd3.json and https://artists.proofprofile.net/proofs/artist/11f8ebd6-2f60-41aa-b718-795a92d17fd3.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e8af400b22fefa31f4ef6908914b831cfd737816c43af13420fc7496d4f35d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA71941350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dddcb386b9aed7b33a1c332e36e3bb865668b07ac521206b03b51678774f61e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZES71943078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b4132d58d1c5e7fcb9ccc84acca035a192c9bf739971030f6e95c5ab7829bf. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZHNA1920461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cfd5b6c616060bcd72f7e1e8b4efb80180746c9d43abe926bb9797821a2414. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA52040119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b44cfd8391760320e239709b6592ee6163f5d3416d994e665b6de6367ceef42. 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/QZFZ62109641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fe42f8bc824871c76559a715606e15f507501db7ddc3e4e4767112f06628f4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHNA2101565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d3b183eda86ed94d5aebee2121b19643224d19b9c582f1cd2b15a7ba7719bf. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHNA2101567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd310a14a0485209dc626ca8e4199c6b51fa61048b3ee5b61a63d8dcfa11d4ce. 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/QZHNA2101568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf66e2068f635978bb7fe4b32730c14137b6c01d1a0a4e9639c6cd3d3c111438. 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/QZK6K2194764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced030119af23df83a946c69c3364ec86fb00e4de3c221f3d7254d6c0eeb9a20. 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/QZMEN2178652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761e0719da9b0833dfd8deda6631e9fe7bf4fe6fc287150bd3853db412377d92. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZPEW2256877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729d75649bd48bdc4ba01c808ec2b6fcf55a53d61d3f236b7e97572c6bd03d86. 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/QZTAW2206364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cf32d7bdc4e85b638cadc7e2c27802d31f8345c86758ba00781cf016f1eec0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/USUYG1471064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f07f13857b7832db6d9ee8ca522f90ef2b695a05c0f40228fbc2d3a84692829. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/USUYG1471066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43999ff7522a746c1a9cb549c6a9b0b148ec176e4c7bec1acb199e2c4a4a0297. 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/USUYG1471068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdb67e727e18524803ff6396f5dc73f8c6bb9d8dbf94a47e78a94c4391c256f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US39N2300939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67020d59cc6837621767834e9db93a2f20c6c87bed316855a4b9ec3b43e1016. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/US39N2300940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414af3f3c6de2c23b9d3d1b47044a32b2d0bc6ae8ac2a95914f816a5b2dfb45f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US39N2300941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8846d8a16e86ad5a327dbdff9743685dfe8f11e1b136594a4ffb3c3c4fea4bc1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/US39N2300943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e7a9ab0c887e60e88700079c69aee140501be3991950bf3a211bba09baaf9d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/US39N2300947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370f555a98a03fbfca5c1e6822f7263286b0668215179b5f4a573aaab41e5c9f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/US39N2300948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d4fca16452cd98240fc809da8b0579fd4252cda8637fa89e11e8c37014bd70. 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/AUMEV2393592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07460ad22f64ffb51e9dbd6a1796b6c6c808a8af9a8911fa241b455e626656c3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZVEM2394239.
HARD TIMES AIN'T OVER GOOD TIMES AIN'T GONE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c00f266445f77790c54a8b3f91bd8ff0de9e51ff9a30a2d778d14ab350ed582. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/AUMEV2490319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5a670a2cb61ff71da2ae8ac3c10c8525e98b41e49d4e429fb003707f2e64b5. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/AUMEV2490321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c51d9ff4dd439caf2a3e72dc2fdebd15c79a3773f062b4d549bb0748135d7e4. 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/AUMEV2490322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb58e75b013d41df2d44b98404de21abaf1417d900e6cda174f79f5633c90f87. 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/AUMEV2490323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2426e7e63fb8cdd62c48db0b339859e0e7261a465624a7f33d5648c4c5b565e8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUMEV2490325.
HARD TIMES AIN’T OVER GOOD TIMES AIN’T GONE (OUTRO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0d64d295629a298a6cf09188a94ae966e9024c0c11b1beda821c821c2cfc7a. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/AUMEV2490326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac313675ada37b9c25cdd35b59c7d521d47b70de64112ff7fc05603c3e183eb8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US39N2200487.