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 0x160ccf39d448a5f0c47acc98e45b624805b5bde6564aed3dd1eeb602d6bc3cbe. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/749bec29-d742-4d5d-b505-91d76301490d.json and https://artists.proofprofile.net/proofs/artist/749bec29-d742-4d5d-b505-91d76301490d.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 0x64207439d8fa9035eb8421bcbd7e1a57f82a44175ffb7be4afc85c33a78d74d3. 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/ITQZV2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dcc2122fb1b46864123ef75bfae7989798cc6cff7ac3ad658ae5b971fe0433. 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/ITQZV2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d83117b1adb349aa8b36a52dd57ec9c80c940e18c12a51787a984f35627342. 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/ITQZV2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d48dd382b6622b8a63f395a4d6a8191ea5ea7f57cad199b093040df1dc2d44. 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/ITQZV2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d15253f7b95118d7c1745f7f5d2f04d61eb5e742c633112836b866194cb2a47. 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/ITQZV2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263be2636b740df2410006f55759f97ae7de215350d703d3abf191653d88ad4f. 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/DEB332380801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd45ed9d18dfd524b413aa7d65acd353a633a52a0de33ef0987e0e2b3a631655. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEB332380802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a73c5681ae63978f0047ebcc163ca022d8c20799b05a73ec1d0ea6a04310bd6. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEB332380804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be2cec76dd1a6aa52546d3bd9ac11e0c5741e85184c82c7b45b7853b8fbca3b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITQM62100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c384b3e0b1659edfc30b5b166e359a3e6c2dda13ce9ae4e27e85aedb65d494c. 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/ITQM62100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec5777b4580c040e004756304a3e3dad38b807a219c37a20a43fa2cf3c913e2. 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/ITQM62100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2252fdc02e142b2ee81693235ac172fe0c0c2882830085cfddbb4440fdc0dece. 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/ITQM62100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03f0c0ef4beeb0b5890c4083b8bc9fefb26a8306d5658022740173fd1a5610c. 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/DEB331760401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14f9f502d7c7f675187839040f5f696790185563a0383af04c8ab0aa016a422. 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/DEB331760404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37085c3fc7bdad7a6c7f73b63a7b80a011e7eca5b07b2189813892fb2fc1a4f5. 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/DEB331760405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab1c4d1e8cec963b4a4688decd7a7ae1f7010ce7a5cbf6e069a60e8dbe72eed. 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/DEB331760407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8d9aacfea67a970736a865bc97785a1c55873652a4f2368c9a3d8707f19531. 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/DEB331440301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fea179bd141e04c104e889ed2ef7112f28d205290f024ebae7ef67614d37c2. 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/DEB331440303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647478fc16ed4cd6b9208282f2f0cf4231660e939f7bfba5b87a86d0d38bf2fc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEB331440304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0374016bc0106ddaa5090c109c8705161d32f80aa897c7007795940e675102c. 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/DEB331440310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc5f63d781a7a3a672943cfb5216206460f79d085b23fe045a9632eb438b04a. 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/DEB331440311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ce6f9887ea3dae3e3cabd358ba74270688716f5a48dd240fedc97570f4c382. 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/DEB331227407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263be2636b740df2410006f55759f97ae7de215350d703d3abf191653d88ad4f. 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/DEB332380801.
Head Radio Retransmissions - A Tribute to Radiohead
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94ef37670a30c5690ffe0736008f8e0466f68d723d1860f4f88b8e5415bb0a7. 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/DEZ941274602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4acd01af0a0d1ef81d0b73ae876592d50860cf6a9fa0ba1d817395fa512daa9. 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/DEZ941274623.
Last Flowers (On the Way to the Hospital)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06405f6acf98e413d5e2c7d29aef85fa3b867010ba32918080ca7ad87e386814. 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/DEZ941274625.
Gentle Vibes (Downtempo, Lofi and Chill House Relaxing Tunes)
Jazzyness (New Sounds From Today's Jazz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf9da120ab56f0f03c2620752140440b0333dbbebbfe10b5214793ac7b9bbd4. 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/ITI022400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c8f35cb12fe7f2d13506ae9bec9316bc739fcbf95bf109d50bb5561bea94c2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITI022400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3449fd143e3ee172b021533576076dc6e9330815c32c848860226cba12502f7. 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/ITI022400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeadaaf5077f9195ad4d451df654c704cb5239407faa94e63715ee4383243fe5. 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/ITI022400120.
Urban Grooves Vol. 5 (Urban Funk Breaks Dub Hip Hop Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e4cb2f2a7a6ebe3e5d8db77db80b8dac8062c37efa94962e60e1053d678622. 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/ITI022300636.
Jazz House Instrumental Volume 4 (Jazzy Soulful Tracks And Instrumental Club Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a93d7ba8365ca7aaee5cf7fa6da2974777877655288f8a0fcc8a29c2fc3af2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITI021300239.