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 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 0xc0336b2d5c9b0974827e07679f2a45ba76abaad8abeeef79d2fd7cd170aa0485. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fc9ab4d-f99c-477c-a1d4-833ce1fc8df3.json and https://artists.proofprofile.net/proofs/artist/8fc9ab4d-f99c-477c-a1d4-833ce1fc8df3.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 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 0x38679196dbf0b7a633d4d10f55d4633ba101cb79e1dbd5b8139be4ba21d35274. 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/NLRD52119915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903bf482bfea402b7c62cda336a771e4df658d19411cc55bf4143794bfe56c0a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZMHK2396995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1896f569608c15f949a28ed9cce4d383d4e7954c732f3c72fb3d2ef4b3dadf56. 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/GX89G2373960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16f15b22b71993b8e3e63a5d3734649bd78860d941c9e13176d803527005cf3. 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/QZS662289798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688a8cdb6867339671602c4470f2085900657b5a5f460eb8edc4524119af62db. 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/GB2LD2110346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fe81f53324db4ceeffb98424984a0259f97053a313c0eeb0460c80cd20d392. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZS642187199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad61b87aa36cecf3c92b7f2eea5f22869de85fb7d9ef6b8fa6ac41adcc980d1. 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/GX4R52142480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c03ef36525a0bc1b300c46f677142dde192e3ac1a2d0b361ff99a95b04618a. 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/GBSMU9787415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a697412db4aa700cb0074078547688e42d5ed1a7ca232a840dfec61f5519bf9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBSMU9648445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4adc891a38f5f5714b03f63211d5e47e19a6267b475285e8993374d19cdc1e6. 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/GBSMU9490114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0cc16e0692333afaa817aa62e4efb34a9e695fdcc7d8043a54ddc7ee020d93. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBSMU8918943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72282976fcabe76e5182a0a1e346d8745d3a87d2095fc037b73fef9eb866747a. 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/TCAER2076588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0222a7238d16a83e83efd9e68a086c55f81288933e98baedf0fd7509130fc2a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TCAFC2071567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6bb9cb17b7eb8d39a1d8c7210b3b409359790596b61b8e39548b164c82e19e. 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/CACWV2494258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fef68c4542d589aa140d50b79e81e80b343bc7ca61985b762aff8a00f4f5a2c. 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/QZMHN2361878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3e19134db105deedc98bd36638a705e75c3a62beae731ec4e486d98c3a8e46. 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/GXESV2402075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63903388d612ab473ac190de75c8332cda37edd8b4e300b50e404a8bde7a5c3a. 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/GXESV2424858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1844d6e512c0c94a9a7ea1d6dc79135e299b2d8183c9fe825e9937ae55202bd0. 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/QZMHL2279702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc975642195e739ee7de38171d1ffb8f2b48b4137e9133c6c9613fd26671593f0. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QM24S2003218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106146c70c5a38016820524bbbc73ae02c6792e8fb56b2af2048bc6a9eda1488. 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/GX8LD2406887.
Get Out My Face (IntoAlter & SURRNDR Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a26258acbf018263676c5ef81bf4cf62eee995212206a82ad4032841a56d928. 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/QZKDK2059437.