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 0xf6d96d64ce433b28d8da812b9f15aaa0cc6a59bbf3db1fadaec3bc8828959112. 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/8d419cf5-09a1-4a1d-8fe9-7bf3105332f9.json and https://artists.proofprofile.net/proofs/artist/8d419cf5-09a1-4a1d-8fe9-7bf3105332f9.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 0x465ddb8441d475c4f2eb9832068cb22d951f97f3cf8c27038a692184a50fd103. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/UK9EY1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36630f26589385cfc8fcfd9fbd6bd9d5583be106d5409bb399c445c5f2252d6d. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/UK9EY1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465ddb8441d475c4f2eb9832068cb22d951f97f3cf8c27038a692184a50fd103. 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/UK9EY1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb52f3b9eec380f8f0af3b45db21c9a8d2b9e2fd035d96b56565091604cc86e. 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/UK9EY1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f4af8b8923046a0bb9040b1078b0cb372dd066e8b1beb92c74a2a957a8294f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/GBAHT1600215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2570919ef3662660d8d6b965a5df7202dcd97abc736a600d27479fc7bcba48. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBAHT1600478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62df5d23ce15b938a445f642575d4f8c9f55cef99f8a3fc907af6c834975fff8. 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/GBAHT1600492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d284b09f7da89955e98993fe40ecddbf76986166398ceb5b90c2d98d7ecbb86. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GBAHT1700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c6e8e115572c6f53d958e77d3e9b36c2d670e291203b5ec27383b223e3cd1f. 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/GBAHT1600216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84947540b32568562429b2005c465f1a1b4c42e94863021d785a8aae3803ff50. 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/GBAHT1800614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe995606db04669225df4ddd8b36892f160776497c6c15c8ba4e7030dd60e5716. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GBAHT1800679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7413e8d48ecc5e798ffc0c100846b6c09ff30f6a5db8dd7f5d14df5970c21d9. 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/GBAHT1800681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd5d1199ee3e262229ea12e2b5744c87fceb86646983309a94b0064d100f731. 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/GBAHT1800682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a32e66019faf6e8f5ab958d93a2b44d8dbc66830bb237c66c3446331f2c009. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UK9EY2000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44a40f0c85286c0cc357293c7a421cbf14df0b88dff08b3625e79bf750b15ba. 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/GBUM71807614.
Axe To Grind (Bastille Vs. Tyde Vs. Rationale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743190244b3f4d616a29c06a9c2a4fdae07c0b022e98404fa169f3762d1d4aa4. 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/GBUM71405340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce84b91f5b204d88a58ad4d6de0e07c93d54c3f4c2eddd4ef978a71f6a00931. 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/CA5KR2365294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b939f6667d902a0b9e671ecf3f15d0c3c3ed6f0ff0addbd53f3503b777cc9eb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBX722100257.
Unconditional feat. Rationale - Girls of the Internet Remix
Unconditional feat. Rationale (Girls of the Internet Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d925256c8cd5c6c0f488d40f07d446b459a290896698c97d777b0b7f1e1795d. 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/GBENL2403891.
Unconditional feat. Rationale - Girls of the Internet Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4600b5d7e6c99dbaf92bc75301eaf8dc8f1d9c484f9917ad13cd92f1a226ccd0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:53:27Z), 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/GBENL2403998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893f2dcbceb063a5e95892454a65bd448e57ea6350dc4215c87cbfd0ad93af6d. 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/GBENL2303596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d444139f5a3355f1717eedeb9ac24c9684f5751802063b2199137c3670e20a1. 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/GBAHT1800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269ec7599341a3bfa45f8543215991705c650e87723bf06859ed5e275a637c0b. 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/GBCFB1900256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce91f6deba8c8fb83722527eb81780a4ef729b76272d3bc0c5cdcfbaedcb38b2. 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/GBCFB1800325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd041e3f8ea7b5e9c81ece0d89934f2074cee1d4197c33be79bc3f4930bccff6d. 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/GBCFB1900255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269ec7599341a3bfa45f8543215991705c650e87723bf06859ed5e275a637c0b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCFB1900256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3ca6894ed4fe5b13887c7906d90a9e2207963514784ba99fd38e1b808fbf47. 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/GBCFB1900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc187a29da7f3c8b19fe30d4460ef90c2222ee5791e9bdd78b8a60827a375d3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCFB1900257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce91f6deba8c8fb83722527eb81780a4ef729b76272d3bc0c5cdcfbaedcb38b2. 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/GBCFB1800325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc187a29da7f3c8b19fe30d4460ef90c2222ee5791e9bdd78b8a60827a375d3. 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/GBCFB1900257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd041e3f8ea7b5e9c81ece0d89934f2074cee1d4197c33be79bc3f4930bccff6d. 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/GBCFB1900255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3ca6894ed4fe5b13887c7906d90a9e2207963514784ba99fd38e1b808fbf47. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCFB1900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c60c2e8b7385d8c4de8f90c6c5c351e87ed055b0a22b0062b718ed39a015ca4. 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/GBCFB1900227.