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 0xb7218ba7fd433afa120d334abc8c140d31ee975ae025f832f80d3d7ffb9b3b32. 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/7f58287e-6bf2-4d3e-8cc0-ef13ea073915.json and https://artists.proofprofile.net/proofs/artist/7f58287e-6bf2-4d3e-8cc0-ef13ea073915.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 0xf5a260d1ea4054613b1dcb1628252fad867c5a92f61303b6923f138a2109770b. 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/TCAFQ2141464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bba8f9f085ce44945ddd954e197ef16bdcf46b70cf8a97e7955eb26344ac07. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAFQ2141518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c76a100e4ad2cae84da699244c848168b8a364efd0dec900c8f7db03e528ff. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/TCAFU2198476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596c362f0750989ae82d215c6e78329e91a306f01b309e0a64e0b6cd4234ef51. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/TCAFU2198479.
Good Morning Good Morning (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81aa64ab0ba818371acf99e73df367c7ef9066efcc8cc2996511335f43ea06a. Chain 2 (Bitcoin): anchored in block 957674 (2026-07-12T07:50:41Z), 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/TCAFU2198481.
Holly Jolly Christmas (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c02f77b8a02f5e503ddbd8c68c360073d64f574db6645c1657a8268ea73ef3. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/TCAFX2138039.
How Deep Is Your Love (Instrumental Guitar)
All The Young Dudes (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9eb6cf9507f0c2e0ffa48f5008b05eb27975d2946d17e5810df3e01daa2475. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/TCAGB2242472.
Just the Way You Are (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b7a0b4732339364f59246768f8e9a354b474b931d85e2fefc483775eef9842. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAGB2242488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacf3f32c72bfcca0342258a81fd930640569c715665f2af88201ea8d23a64f2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAGB2242519.
These Are the Days of Our Lives (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89624df65e751a31f24b43ff788b88c4df983c68587d05bf064f2f445013f5bd. 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/TCAGH2286842.
Step into Christmas (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcbfcccd362bef3eb31deab9d1a120b63483cf0d5fd6797759dc9bd4810feb6. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:12:18Z), 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/TCAGQ2263752.
Say You'll Be There (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8897e8a86ff7a3050b0e50d442280940e191c48dec7d1b1e0ca90268476c7a4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAGQ2264098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf7728d7ef431a1be56fd600f3f9be4d91b225516b9712be1d38944ed2e4183. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAGQ2263809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7d8f15561e2a0da9a3799f31299facad6acf963c4e96be5516ea03cd9f1857. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/TCAGK2266375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa372ec32d85d0f902ca6e35a03ce9d7fd2e205a25d76b75f01893482cd7e6c4a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCAGQ2264135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66535a1558c469aee2f303e0f39f90413dcc447d1a3cd9b3c105fd693c2cfd4b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TCAHA2345670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6594ece02ac269a22632b09fa3a0abb3c3f1770cc6a3db46c12bdc1ca57218c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:00:18Z), 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/TCAHI2320578.
Rockin' around the Christmas Tree (Instrumental Guitar)
Merry Xmas Everybody (Instrumental Guitar)
All These Things That I've Done (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed783853800f72da5f84c40642654a6d2c9b941406fc2a8435950c4282c59bce. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/TCAHT2455908.
This Is What You Came for (Instrumental Guitar)
Thank God It's Christmas (Instrumental Guitar)
What Christmas Means to Me (Instrumental Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5811d1ad84b20d5474b5d0bfcdc2291facba7d41984fc920e267919adbe4af8e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCAGQ2264032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286c59bdc9f5ca1f7e31f25cbbdb370483461ff2b939c55ed82e9e33cd110aef. 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/TCAGQ2264044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf7728d7ef431a1be56fd600f3f9be4d91b225516b9712be1d38944ed2e4183. 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/TCAGQ2263809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac14e06d749f74d8872965db4732d7e13f7c83df56b601cd8ce4178c9083dc9b. 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/TCAGQ2263258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286c59bdc9f5ca1f7e31f25cbbdb370483461ff2b939c55ed82e9e33cd110aef. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/TCAGQ2264044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf7728d7ef431a1be56fd600f3f9be4d91b225516b9712be1d38944ed2e4183. 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/TCAGQ2263809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18be4ee83e80d38645826f15d54e6523afbea01db3719ca43927a901a241951c. 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/TCAGQ2264106.