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 0xfe902c4ad6e689a082d154c971a3b84f86970aa850ba077039c618bb7d1f48e4. 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/bee5d4d7-6e11-4754-931f-968ccdd7bdda.json and https://artists.proofprofile.net/proofs/artist/bee5d4d7-6e11-4754-931f-968ccdd7bdda.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 0xdefafacb3de75bdbc7101e7ac592fb092ff412339415300d86b4e06eb37b3e86. 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/SE22E1800801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb312c896ee466f6e0902c448eca778479af5d144f358ae23fcfa7bdbbfb1a4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE22E1800804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca2c28a1929f73a5695aa07b307240519700ba5fe026ed3ace02b7783063255. 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/SE22E1800806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6f3a689e4ad0c0301186000196de93abb47e0c7683bd1e79f4a836fa8d3200. 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/SE22E1800807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b6d295afbf0095900241a8794b0a412c8fcc87bae370e9d76a3e96e4b13952. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/SE22E1800808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b55c69b5d36b828d9a11d9a338ffca73f70288f4be6d470578cb67d592c3b2a. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/SE22E1800802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83af5a0743826026e6ec0f4da27f43d04db65df275330697b636347e63f311d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:29:46Z), 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/SE22E1800805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae40e6402efd4a99cb41254e5ea453f7c7950c44dc65305a780b25b954439f68. 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/GBUM72200521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d46006a33f390bd27bbb828f6fddeae517daf8b4dfbc06f7332da337aae4e4. 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/GBUM72104094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d46006a33f390bd27bbb828f6fddeae517daf8b4dfbc06f7332da337aae4e4. 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/GBUM72104094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4fe0f9897990e728be682de65876e587cb2ac284f6d49d1ed7e3ffd5fbfd93. 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/GBUM72108416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4fe0f9897990e728be682de65876e587cb2ac284f6d49d1ed7e3ffd5fbfd93. 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/GBUM72108416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5797600a881079dd6e404c43b8d3b2dc6f5e59b7ed7653289b6bfe92c829d650. 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/SE22E2000801.
In the Blank Space (New York Live Recordings)
In the Blank Space - New York Live Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde57150d15bba82f3fa4a4af049052b5e05be71f160f7cac502d787d4b924ec. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SE22E2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598f84cffb271b6c07a6573c9e7bb7a405d5dcf1179cb0ac46efa4d8660f418f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SE22E1900601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737492378dac0fbccb1ea798f18b33cf81bcf7eeae2264389a6e17d7361f49ab. 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/SE22E1900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588d432050cb0e19f71fe70d52e9fe2244c7050c89aca0c3d2e37e642778f3fe. 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/SE22E1800501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70de2c19d83d12fbf752a695cdf5307b3dbdcff0e305b535df363b0b1613df4a. 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/SE22E1600202.
In The Blank Space - New York Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde57150d15bba82f3fa4a4af049052b5e05be71f160f7cac502d787d4b924ec. 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/SE22E2000101.