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 0x05b156d904f870c800da03c173fa12c893b5bff76103a1e76c1c4159cabda0af. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9164b760-0b72-4844-abd0-e8c84d131fa7.json and https://artists.proofprofile.net/proofs/artist/9164b760-0b72-4844-abd0-e8c84d131fa7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Art of Stalking (Deepside Remixes - 2024 Remaster)
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 0x20dd72c1bc846bb295b4a9ec73a5516125025abcb374feebdcd1bc3c61e20e65. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/USGUM0910227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d536e26afdf8aa0ec477dddcaae67192d656ae95f6667c6f9dd1f350b416e2. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USGUM0910228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59f9809537ccd2f5763dd035f3259e8fa345d13790867299bf5c0e33229ae7b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USGUM0910229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13eafa8f3e8533caa62e73dca70974520e91c0ef3008d255176ecb43dc0a2c33. 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/USGUM0910230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf930823cbaba43852ab10b6c8ffc0d66da55d1ddc7e3166cb0ffcdf059546034. 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/USGUM0910231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82075c27dfffaa9aa658255b0f240f2ee57eb6542501d0c9d99ee1c2d71888c1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USGUM0910235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444af8c90715ef9ecfe06c55417b271b4bf133e8eb0a45ff2c2b1f1c2a92d043. 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/USGUM0910236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394de3bba468e555929f27358e15726032f69dbba4a2d6c608778896172f68b2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USGUM0910237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23118059889f83b0e73330bd6a695b0a713a43570babd4956abec6ff8ad3e005. 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/USGUM0910238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68868c4f04197ccd8baa939cd769df6ea4e9193f403d18d8e3f7db4a59d3d5fd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USGUM0910239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21cd58d14819a47e011c4e9247243362d52abd6b44707b130ac80c512086d5f. 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/USGUM0910240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe1c7a741c5a959ae9d5652aa8ddd4ea90976bb03f76e78c62637b62f4ab2f0. 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/USGUM0910241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde384516f95eae051a1dd2f54d115fa0b136abbdf7de8be2727480d9b0a4b4d8. 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/USGUM0910242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b69f11dd4cd1041bf66edf120e8bac365459b7eb9ee5da0d97bbd75780278d8. 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/USGUM0910244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0931479c9fa5da3a854766f37a2cda203a298478c9983f069c6a616b8e484a. 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/USGUM0910245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dbe5efb006609d5b46a2abab8e38e429118a58567bdf1dd48aca3ebe5f4a74. 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/USGUM0910246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9d30b6978861f15a8145f1eac9b4b9e24a07999c838ee2c0f0b87ca46e42e6. 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/USGUM0910224.
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 0xede753fab098bd4a8f827f3629dad4e3c283b74dd80e7022d34cdaa2bf6b84ac. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USGUM0910226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e303136dfc20129a7bdea1a33b7591897b660f2fc231198789e51e2a1cea57. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USGUM0910233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3fe4fd176d460f4b078bd79cfe3bcb6c00817533a86294de76acd4ff2b315b. 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/USGUM0910093.