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 0xbda66e0cb8cbae53207a3d1eea52fd0d93ba556ae25a998c39bd72d98864c46f. 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/b957fcd3-c218-49aa-9266-27870a03397c.json and https://artists.proofprofile.net/proofs/artist/b957fcd3-c218-49aa-9266-27870a03397c.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 0x53561af9253362be23d46ecd2e714e4513be9eec6f3523e7e7e8fcc9ffe7b408. 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/US4R30622923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab54ee6cb399dd4f1295b83ba87a3662e953df7659dfeb57ea2b4f068a1a989. 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/US4R30622924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf4f6cb96c32232da935a3ca8dfb37010d2e7d0373e99aea8d0e827e03a5fee. 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/US4R30622925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486cd921799840b285761c6cb6deb405d477a45a9692d4bde81074dd4578262a. 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/US4R30622926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9354429475c95432107a1995b02ab847b57908b86b0f7c67916e2e236aec9d0b. 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/US4R30622927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71719860de9446fc8829666544cd0b9a084a8195f25c7c3bd557af784412b11. 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/US4R30622928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e80eeb64a950cbf6c8605c801ad7d22f8de8d2421218d72b8b0d835bebe3e98. 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/US4R30622929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc322d3f9a96948e450dc7d193506ce0e8378fcce9971c22c41c92e387f4866. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/USNK50800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ee655e77396c7c506bfee31a435b6b035948f192ac36cb5d5c2216c790bfbd. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USNK50800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa318ec87dea1ce167fbcbc64e089162a10d5f4b807500ec65fcdcbc3319a5114. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USNK50800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e620797d23cb561911217cd206a4f454495af71eac47b2163aa4a6aa3be8628. 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/USNK50800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc322d3f9a96948e450dc7d193506ce0e8378fcce9971c22c41c92e387f4866. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USNK50800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97551b4e330f05952a9480b0ffd4150dd7f81276a5fdad51cc3526622949a4bf. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USNK50800509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b344850be3e660eb96fb2eed44596aab3ba5244e354d5436d4551179d131dc. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USNK50800510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a9f8c9b94c535277f7234c1ac53207f209260f1a26fba09ebdba31f3f8447b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USNK50800512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85a0d2072801b9a8496c41078684900c1208d614d07f48b5fd9751e25c379b8. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USNK50800513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb61425915072919772d4efcf8874457a06f404e07c00935b04f1b92bc706e26. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USNK50800515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf59186fbd39b532825ef575abc1f66e28223baf1cb534b758e0dee60e818ba4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USKHG1200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2357eb01045a1437b4c5b1b78d58440e29446be452138ce91bf03a58aaf41df. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/USKHG1400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fc24b8e4fe4d5803c99cfe351f9e9a6904a56812932f34f6869cc565130826. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USKHG1400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe878ad7b693c7f28103ffce5fc0d12f57b0c2b765dc04f5fa8dcb24aab8b28cc. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USKHG1400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dc4928e3e1a7de003ecbd4e807eb8a67471b58bdd84023e67bb3741a664e25. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USKHG1400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37bae22719ceaefd928128dd1cc431b4d3f17c726230c3ce7d3800e05757cb2. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USKHG1400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad67c4eeb7c9fabbd8e5a7dd3e392ea9f476909386fea351e75ab13282011941. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USKHG1400058.
Celestial Sleep (Healing Sound for Rest and Relaxation with Crystal Singing Bowls)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744b4526fc8981c6e452cead9aaf372aba048e72c51b8456464105514c347e82. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USNK50918002.
Golden Light of Healing (Guided Meditation with Crystal Bowls)
Golden Light of Healing - Guided Meditation with Crystal Bowls
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9cfd3717bd04001fdbf68ea6a8bb8d1dab96c8919ee2085eee1e899ef073f0. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USNK50918005.
Cosmic Grace (Meditation with Crystal Bowls)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fc24b8e4fe4d5803c99cfe351f9e9a6904a56812932f34f6869cc565130826. 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/USKHG1400052.