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 0x0c90d21df5e6991d530b98f8b42a72428f346e17cdfa7ed7fad1113fc7b486d5. 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/ee35cf33-859c-4bf5-8aaf-698774858be9.json and https://artists.proofprofile.net/proofs/artist/ee35cf33-859c-4bf5-8aaf-698774858be9.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 0x8ffd264065fe8740cc29eed0061d20406cd988565586081f7cb9656325fc1470. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:22:40Z), 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/QZBRF1847826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ba412de55dd18b122cbb384a3944edbdb23e9216e1018c6d4c044b5b8d3ab0. 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/QZBRF1851670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4fe14a3948693eb8182270fc2fbff56ce88c22009f9d3a728528c4fe598c16. 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/QZBRF1851672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8187d508333b82fd272e278d1b3d526ab97eef19193627577a51f1515706c0db. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:47:01Z), 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/QZBRF1851674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b55b8c561fe55961277025b6c4b102c4f4f1ca93431ee5c150adc26c56ee58. 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/QZBRF1847110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f08d256b806cff4ebd5601bddffa2cda3542a907651e499bca81588e7f9499. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:49:34Z), 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/QZBRF1847112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9362e57b55f6f0b5b46d5d5c321b23b847222ce00f732aa1f1f579acbc3497d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:22:53Z), 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/QZBRF1851025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930719a07603520c998a5109dc68e263be6be3cfb41f6948a408e99b8a9fe46a. 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/QZBRF1851026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fa50fe9429317af4f70a1f2254c2a96a54cea3c3fa6ce25db5ae79fbb205d0. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZBRF1851028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118ba6ba8e605936d638a19acd490e7f04173e9ee249ed98a1b15241ad49d753. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:13:23Z), 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/QZBRF1851029.
I Never Thought I'd Find Comfort in a Voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b92c7a030d7df9868d2d39866e372ff5b3124ede59d3c2ebcb9aba68d2e51f. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:00:21Z), 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/QZBRF1851892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e266cc69d49894f3f88dcdf48ffd14b52747c2531db4ce16c9b84ad2ef94ad. 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/QZBRF1851893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9810af2061ec1009ac47fc05c326ca41e04a875df738aa0ef59e7a002e8af6c7. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZBRF1851894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354915758c591dbfb64ce98ba285c2fd4d54e8c3252490e4403b3a3d746ba1c2. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZBRF1851895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06fc247949a31d2ed48379278bf08b145b7bcb653b209c7f4ac29b4ceed2c70. 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/QZBRF1851896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc1c48eedececd9227b3ea482a1b6873e52160c500f54f6aeddfbc5c1b3c917. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:12Z), 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/QZBRF1851897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7414611c8cebc974a38c3ade2661e58b79614eadb70e4c53888cc97e9e2ba8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:03:32Z), 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/QZBRF1851898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9922b2fca3bb892dcc75db33189e8ac44bfbbac42d6b317f201eb71677619a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZBRF1851899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572ed8b5c7cd9a15fcbca8ffa4c3b0754d074420c45ba640760fcd30257e9cd5. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZCE61837578.
Waste Away (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
The Way You Get Ahead (The Noam Chomsky Music Project)