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 0x0fa7709558b7351d41ee9b0a7e110b6509d131b02f2c025bbff8f661c86efbe7. 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/03524750-4f7c-41ec-a42e-0522586d7cd9.json and https://artists.proofprofile.net/proofs/artist/03524750-4f7c-41ec-a42e-0522586d7cd9.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 0x0e59bd4b85e0dcf49632e953331309bc6579ed9522c2597f3a6e35924b36a152. 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/TCAEM1985955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0741c7e3938721997ce4f36ee1fec8f7218fdb2261a0037e1ffda7f0bf40b5. 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/TCAEM1985957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3143ca9e48b3d7ef16d00ab9a8933019e7690e1e3a6ec06e973873546c24d829. 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/TCAEM1985960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6845f300e1102ffd6c0cf5d6868865dc0601b453d706d52ef7946ec675fc22. 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/TCAEM1985963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9976c9f388dac2286a1189da61b72df0bb2e87f2474ca468f2d73efa72bdfad. 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/TCAEM1985965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3c56c8837a8b8ee70dce8fbb406d7fefef03df670c52628136b6eb28e6548a. 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/TCAEM1985967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc913565c8e8339c915a937d915cbdcddf939792958fd816ba21d804c740239aa. 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/TCAEM1985972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc837cd1e3513107c6c23c025b7e148f2fe05b2b805c69017af54fb6045defefa. 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/TCAEM1985976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb418a9680607631281bc551730535b60982b6add2cb919e78a37ed3f9b82dcbe. 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/TCAEM1985979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a65eb203899a682a4d0f08c6d7ee9c2431f6cbbbdf450291d7d2c522080c1f1. 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/TCAEM1985983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a84087ac955eff63c516fabb24a45bfd16cae09de8df038f434a9ef3f45cfc. 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/TCAEM1985985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55d2af92f113b0779ffeefc9df5e547202cc5447c062708fb5c5baa71965d84. 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/TCAEM1985988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeaee4eca514485ca6fc4f4e99118a8fb2d96f5be49ed8eefb595a7276c8b4d. 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/TCAEM1985990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4784d68fe1975278847433629e49c3a688e6b4746e3f6cd59d95a4b1c6f7ebdd. 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/TCAEM1985994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e87f59be0ef22d4810e1631c53ca0dff15e1dda77f9c6bf0cc24d3589a4e34f. 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/TCAEM1985996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73080a22e6b5511594c5d1242a0b86d1b0d80de3e4258aa6ef0ae174da01a804. 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/TCAEM1985997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963684a3cf2ef5f4264541365d4cade853bbfe947ccadc50d6d205ac3c5216ed. 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/TCAEM1985998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9ed7ce78ecb070344b7ef61ffd1b8ef3564e0a622a806aa87ecd380f509fe5. 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/TCAEM1985999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0103cac304165c2e51f61dc374659e87187e62e30a3e417477e21cfe40931e3. 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/TCAEM1986003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a66574b48d9dbdd21fe3dd1c87ea924156cc723aecddd2917badefb86e3d17e. 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/TCAEM1986005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e14c682049f3beff6fe4a04fb10965972713d1fb1f521a75b31fff51bde08f. 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/TCAEM1986008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0e124ade27b8c97c99f6deceef30e0adcca898b8abf0a6c565f6db0fdf0d46. 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/TCAEM1986009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e30aeee77795b2589bc91f6b6b83486eaa30717a351cea91f229a6f8f1a0fb. 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/TCAEM1986012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59596fde13ac910a9167b08b9109a27c595d01722b823d22c4c973cf58cda2f0. 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/TCAEM1986021.
Warehouse Sessions: Here Comes The Light (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc34dcfe33819877d04770f43ec1711009e16bf1d2c1aa5393f6eb877790e5f. 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/QZK6N2126628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9876bb7d2af791d89f3614bf22850e814d48b50eead4344e482871aed9d94cd. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZK6N2126626.
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 0x0b754c064fbec41cd88c8287ccb4a687b1021c0d76cf00f221ad44eb64f736d6. 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/QZK6N2126627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a3c6d73432c1b90d19aab5fb629adb0b40f1d6666b4d9938de2c88a2c3c87a. 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/QZRP52358151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bc7789335ea573bd0ad093ec0ddb58b28b4f7920e9fa0eda81b221a85f64de. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZRP52358157.