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 0x47cc39c9255a6e76769d1ff0471d88caee0948515bcb43a6b4aa157c1f83afb8. 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/364f58c3-ef0f-494c-989e-22794e46c318.json and https://artists.proofprofile.net/proofs/artist/364f58c3-ef0f-494c-989e-22794e46c318.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Island of Sodor Overture - Instrumental
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 0xad945c4a84bc09d8f7b9a18e3894942452b4f30ec2198a0239449e4c87731ddb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZGWX2210240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69b3ee6936d27ed0505de0f31305ba1d14723f1bb1239042fbc435515a852b9. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:48:12Z), 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/QZGWX2210242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4114f9615bfdf88e40e067b38558f6c3bf907ccef503022b3dfd499e74eab819. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZGWX2210243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b4fd6cf2e0215ea4ed89783f9544aea600d79573e91a53ed32841f2ed25877. 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/QZGWX2210244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7fbff7523184a21b156d1f3c64defd84ea5698ace2c9cc2d2b8c33a11db467. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:53:10Z), 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/QZGWX2210245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8caeb7d238e3c95171605cd1c087752d368d50bbb5e3f40c91cbd0fa1e88c1cc. 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/QZGWX2210246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a66c0ec7f5c7e9ad21a76ab76c6c635c4adbd728bef2e3307674f884159e007. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:35:08Z), 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/QZGWX2210247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ee098ab69a501167a4ec77c120e5a26e0191e10c7fd9d9dfe2f605a62c3b64. 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/QZGWX2210248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5472ea0870c87fba1f2fdcf2b60d52857009135f82a2b956da992e3393745505. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZGWX2210249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e506fb3b45f9e578bad028a68c4f704b1423181331b4ef41152d6f2c572ba24. 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/QZGWX2210250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fda0b38490b259f1423e10dc23e1744cfbca4716e84b44eb78eba1758fa7f13. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZGWX2210251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8619745675218e3ddacd564c3c45a61a2c603a0f4c9aea4202a34b018fc508c2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZGWX2210252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7caa9357fed3b2f57bd39f3a6637849686e77d61b70db4ca29188ef63bea66e9. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZGWX2210253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923034d7a3af2278dadf042d5691e2203393965997974c23f342156063da4956. 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/QZGWX2210254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99ec6ea4c9fe3e6303d96784c750be9683ac9e644104d1bbe0d061cb5a4255b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:18:23Z), 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/QZGWX2210255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37c3e7833680e8b1b9b7db754517b4779ae49c56d036ea06ff8456f47badfb4. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZGWX2210256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3819c1b3ba7d846a6739954eb9cfd064daea8407024cc18aafade376eeba58. 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/QZGWX2210257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1723da8bb761c98d5a34e06a091c2f9a13fed07af92cf1b47283dbbadbb25a. 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/QZGWX2221091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68056232857e580ff7b5049a4baf5b9bbe76c5dd72bbe21b42603d7d7a3cf707. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZGWX2210258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc5e1c99c0d0d72e4dcc8ec4744a72cd608f0af5db619a1a4fa44d7e4ff6eb1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZGWX2210260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018e7698af7fafac52101bd411806a1bed3a84b97115d1a40cd2f558aa8dc74f. 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/QZGWX2221092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7763320bd52ef0c9f4921291bbc48d84857aff53488ef3668cf60a4d301421b. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZGWX2221093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c59366a14a648d016ac708a7bdb3795a1b3596b3ee373083cf3485ecd80711. 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/QZGWX2221094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2944e4ac110878817f487d0deb912d74512f05e8876c301a28167b5df76fd1d7. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZGWX2210264.
The Railway Series Book Closes - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752e385e59e39f2e2e436076a238c64884f3268ad791a57c0dd1f021bfcc9db0. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZGWX2210266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4945ba403e8f118851f7e4672e702456240dc058993a21666de515210b6e9024. 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/QZGWX2210267.