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 0x568839b9fdd375290f3ea74fa9866a665c578a537ec8760c90c2d23aa1938288. 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/7ff23756-63ed-456a-acf6-3e4fe62a2705.json and https://artists.proofprofile.net/proofs/artist/7ff23756-63ed-456a-acf6-3e4fe62a2705.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Songspire Annunciation Vol. 2 (Mixed by Solanca)
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 0xc393372af2e9ee5b199d0297ecc81326fa37d5f6af1419bf6d81a9015482c1e8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBEWA1906140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d28ec4bf3db746a8b7051a80a2854de346a54d5171c4c0c70d17507f9fc67a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GBEWA1906141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e96eb8603c892d922c45346e653e45774bdefb57f4a3bd1c9fc4efc58839137. 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/GBKQU2104121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f179e4610fb29e62804ba45836fc21668b920ac38209a31b248cc300d5096c3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLD682101121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551e4fde0f570182c09358a29dd939695657edf56c38c62b63709ac19d3874e8. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QZPQ72100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eef0c58cd850dd4f2e6012746b122e89e9c61e65e3f0f118e0b4a04c7f26066. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/NLD682300169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fb78e8adacef030c99960023cdd322ed51b1a6fb385cb0f37a27fcdb788ae3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLD682303060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fb78e8adacef030c99960023cdd322ed51b1a6fb385cb0f37a27fcdb788ae3. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLD682303060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c963e104d31a7e468ab97f986c39c844b2febbda69902a564d99a21415a4ae. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLD682102194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b8264ca8b63ada142a8cddbc8f7c6895999d56e28102f26815d5530b9f434b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLD682200823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383df228fa08494d2c57f27f6279834f9520460c6f86a3c62aa84862ee879aa6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLD682401007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07999dc426bee3f053d59fd5117ae0c40346a5221ce8d21f684f40a2e852251. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CHUM72500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea94b58cd091613a4a26d5a0a24f2c144cf75dc9d1ab7971525c49672f0bdc6. 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/GBEWA1908713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb5f670b870e3ce53ca3a5663d54e2d3ec03f3b667902813aa0335e84ed30fd. 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/GBEWA2400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59522c2142f116fc8bbd66a11155350c9ed9de93cbc7a51d425ca2b224922f47. 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/GBKQU2095302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7366c0ee145c3f219ab0b9649a13a5af2d182b84885f8dc01a4cdb7ce1c23852. 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/NLD682304161.
Songspire in Ibiza 2024 (Mixed by Robilardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ed2cc185179e1d4fc37d2e6abf019aef3834e48bafa81b341bc3b7a74e472d. 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/NLD682401957.
Bloomingdale 2021 - mixed by The Palindromes & Dave Winnel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9535da4d4f1cd50d1d1600cab8c947aa69e5223212fa0d9be7dabfd3a8ea89. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLD682102448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d502024117249b216140d102bdfa700c0d87fa681db95ce9ef5f323429a8a3d. 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/NLD682402889.