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 0x3dd246cbb5d24f727b5fedeb03e43cba5f23c0108745b639c87279ae0544c646. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f59036e3-59fa-4181-a4fc-f68ce67cb151.json and https://artists.proofprofile.net/proofs/artist/f59036e3-59fa-4181-a4fc-f68ce67cb151.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 0xe796c6cd14a4702a3a56fc2df90ea5b534c9493c0a2e66dd06a830421f3c5c28. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/NLF711703758.
Bulletproof (Before Their Eyes) [feat. Mees Van Den berg]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03aa591b922e538787e699a0c2d5ebb0f0cafde0008d2fffe79667bff81122ef. 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/GBSMU5667555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b2ab334d4326080da078acf235e60efe403e1dc90df57bc89d909c0adf2241. 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/NLD681902759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25c65eac95fca1f7b50cbee69227e4c9459993dd90d0bd7c8976258c6286b3f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:05:33Z), 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/GBKQU2020257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2b70e9e610140a7e23337fcbb1051c8ae0a418ad65f1c1617d18c51ded38a5. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBKQU2178216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7227cb973e8ef7a822f3c8a7f2b383210253b50957d428e68e024fba048eb7a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLZ8W2300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7e37b397d2c2fceea305293bdef62dfb009cf7efa959b1e25bc5e2b0e2be4f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLZ8W2300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e103e742dfe949b72a5a861ab4be5034a4135c55d274aaca40738176f99083. 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/GBLV62316365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b083582ffba685f6c2cd7afd399db2b12f3fcacf11a5962b0c0b94bb86367c. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:22:46Z), 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/NLZ542400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c44c1be051826f65dae648d3f76722c3840964fea2d77eb190fd8cee3620ef0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBKQU2408455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f53d7aee0d284ad8743bce5115a73e82a6fe9505335794c67a19617a5ff839. 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/USA2P2400259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6250f2bd4dd889287edd0a806c9115f8b6c6a15357ce38a5bc44a57d0080476. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:32Z), 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/USA2P2400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12b9fb7c808cb39129e9f452ac27a905beb02b2e94022269978852e65532f8b. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBKQU2462903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339455e57247759a12bde4584bfa8ce59ee9e82d01bdf32286cece1f6ef36273. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NL8RL2439675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f14652402429920addd77865ae5a62a64bd2d652bc9bc96abd5ff002652b6f3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBLV62400478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94396d7023bc1c65e46a0ccd77ba73e2f1bb12e10b641453ae1d8f2a9c2932fa. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/GBLV62400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58201606fc1b8f9cd27b9d648df5132b9d8f39ede0ab55dbab8f4b4ca67ffc5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLQ8D2400984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432621fbce613febc7510ef004077267511e48d8d5b6248c8bde75333cf55c36. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/NLXV51301131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c056c681cd609ac9db53eb8bd7b8d5ade88f9f73747a6a27f98842d70aa2194. 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/USA2P2229281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e0cd71742ffa7589c0e284316755ec0adaa0cfebc9a594d2022f58481691b3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBKQU2281499.
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 0xd2ec632a485f144c07016c5fbb34e8e23be8ec7fe353d07c3b70bc7fe3d2f44d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USA2P2301930.
Little Love (FYH385) [FAVORITE OF THE MOMENT]
FYH385 - Find Your Harmony Radio Episode #385
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a32b8e9b3208a855bf065df0ff83bcbb80264fc0ba5f3bd71ec72cd3817c29. 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/GBKQU2405275.
FYH386 - Find Your Harmony Radio Episode #386
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226a19051773491ff41506ddd7b5f4a81b14479dc3ea3d66f286c652304156b2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBKQU2406451.