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 0xdbb46b069c3fcbe693706f069c9c02bf014e8dee7311b60e76ef4068ed9737c2. 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/9b59571b-0744-4e07-aa58-48a4e552d6da.json and https://artists.proofprofile.net/proofs/artist/9b59571b-0744-4e07-aa58-48a4e552d6da.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 0xe4e5a1e043609d559c60935deed566772f83686ec9dd3409508d85fadaea9a85. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USUM71903440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8046cb68ea21f8fb37a4a4032af99932bc04231dbfc27521033b637a0ca734d8. 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/USUM71903448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd03dd3d3b588be2a8aee4cd42880f284a0cbd7353109b3690625988d533821. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:46:56Z), 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/USUM72002325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf765464199df7f530a74169051bf14ec0d0578d729bf2adec53842bcb94d2840. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:15:15Z), 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/USUM72002331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eba5a550ed7dac6de49f92cd8a331f54fdfffb8ba59606f5466a6ea63b7ff6a. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/USUM72002322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67df39cad222fcb4dd3419bcb043e4206ce8f6f23496e60853b79cb8d2f3697. 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/USUM72002324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8e4a351972b9b20ea8ac0d2df8628972f9ac8f19bc882c63427ac47efb4b50. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUM72002318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd04387403e808e85d4c206d2c097f54fa961d0878d160964bcdf6992fc8dd2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USUM72002327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39d2b30fa5ba4b0214b06afa23c063f1184b2c869de3c3c140d78c86810f14f. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:35Z), 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/USUM72002323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84ef5fda9701ae0e9c7293986c26d904705dcac258f03240df895cdea4054a0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:10:32Z), 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/USUM72120835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5921093b03ece6ac012a75cc4e34e268df914e1c8859bdac8c94de5b418f2900. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:54:38Z), 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/USUM72120830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3a7f24d91438a745b72aa3ecdc7c960b7c9cd07bb207d5c691e6db6b1d9788. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:34:30Z), 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/USUM72120833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9b8cfd84cd0dab4d068f39a3026801df2df5c6185de79177e5cb4fe1dce255. 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/USUM72120831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270120a0dcfcdd7ae4d04958df81cc95e858eeaa821cfdfbf83fbc187ff0f6b5. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/USUM72120832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513588e38c11ade40ccef4bead12fc0ee85e19cf839b610659d66ad4027a7de9. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USUM72120834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c2dcbb9e582be720c7c340a60f8efca464ef91992f163b6ec68656c4734cce. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USUM72316674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fca1aec08d042a2b0547965c05acd547d3a10216c710b4ba74242f2fab0a965. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:53:54Z), 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/USUM72316662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d40d8e8372331cbc28b427222be0c330fbb3d2ad66ae21c5d60845a046bd04a. Chain 2 (Bitcoin): anchored in block 957723 (2026-07-12T15:34:17Z), 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/USUM72316669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12365ebb0f9083b397ceb0c6c4c30748aa9ad38564e1a2d3204e0cefdb33affc. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:18:49Z), 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/USUM72316675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313b609a37b5fe199fb9ebed72aa3ef371ed2268f5d580b9eacc39c2565071c5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USUM72316678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de2ba38359ce1d52171975bc1f4a903d24a882dc35742ca24ee46702eb8f91d. 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/USUM72316671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f78b7d0297831e81a403153f6816679c34bc2e49962b3a4d7a6f47f8af1804. 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/GBVEV2100191.
See the Birds feat. Joel Ross & Michael Mayo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa810b01dceb99334277a2586ce57ff88e19475e26c0f59ad70ffeb2ddda90ff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBVEV2100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f78b7d0297831e81a403153f6816679c34bc2e49962b3a4d7a6f47f8af1804. 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/GBVEV2100191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359ee3145d3720f191d57c18d28f5ba0ab65b2a8ab01d16c45aae7c7d503f8f8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US8JA2164001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131c75d06b58be3a5909b97bc1c9a169e720d6363f2928aa16cca5d942979af6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US8JA2164005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c248f8c327a734cb03d85695f15ffa90ba62d81dce21aa28754ab6bb05b2e4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US8JA2092001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04459a5d1f9b49cfc6fb7d6fd68661b563182d42a684e21d5ec67c83ce8f65fa. 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/QM84B1822001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985eee32d97ebd5d8121c06a606d934ae2683f40da8be72b5fde33c19fdd0818. 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/QM84B1822002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf1b49747617c53d2024aeba54fd511df011141a57ba0584abcfdc0f0eccd67. 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/QM84B1822003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e7cc18768e89bb78c014ddd36e0add260f9c210dc682b9ca60a297028973c8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM84B1822004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5610dfbefb338ca05df48fbc4f51476d54c291e8c1dec3e92a085ead54156966. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM84B1822005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceb4e7c4ccdc6d962da2c5c206a9001b89bd63f552e234dc70d23a1e4bbecd3. 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/QM84B1822006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e42a4e697d00959567dfa57c46859d3a0274ed45470236370f9875c494b0a5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUM72300435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a0fa23d90b21b6ab7e69bd755c872f90334874f32195fe087e956b3de0db16. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUM72300436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49526f2fe5ddae4d5bcb0c76a25ae7513f9421fa2e5c5c63505a12fb780e3b2. 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/USUM72407818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e87265b39a2f44e50238e95418fba11ece1f05e320e8e2d6a979665f1755e4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUM72407810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8294c30602793a226ea95796c80f3c1ec56904eaf481a8664bd26b03e004e430. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/US8JA2158001.
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 0x4fc9314f4c2c930e3e086e1a9fced5ef84af7bf7eda493a3fb09f680b8c62bea. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US8JA2164006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223549473bfdfb1e28b4755309967c145dd57329584593e4022ed0f4eef81b06. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM6MZ2338441.