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 0x6dbfab1558e8138652f4a8ab5b59f021f733f867ab5e99c76c473fa396c8c5bc. 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/e1bdc5f2-37f0-4e0c-b874-66d79e93e1a6.json and https://artists.proofprofile.net/proofs/artist/e1bdc5f2-37f0-4e0c-b874-66d79e93e1a6.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 0x144a74e0d5c7e47f4b1208b998676c04991577c1c2c2eb6846ca80c8eb5b8e25. 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/NLUU12100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c79be95b8c031351dad620574d56923ec6228bead01ce82cf113d3c3f59494. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLUU12100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf614335e1459a95194cd69699f158ee9f467ce440db0e58cd6f52728ba0dbd. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:54:44Z), 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/NLUU12100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa860f8922c1b6722da5a3256e61b45836f1f9d8322e82cb4836b57e607c1c98b. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/NLUU12100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2897106722422e162de16fed0c6ac5705d32b020e38c00a2854444a5724fd9fd. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/NLUU12100033.
Beach Waves and Thunder Meditation Noise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e857cd2197b48cbf6b00bfe0ebb43c40004232689597973e99ab7ba6ad0f6a3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/NLUU12100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161c3f1532f0c69e234ee2a98fef448e9c380b1bbe36f7c62146999e792bbc51. 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/NLUU12100037.
Calm Noise of the Beach and Thunderstorm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf590eb4d5e4978fe98cc27e299c372d19fb69c1d424e0846acc66f8ca5301d40. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:50:03Z), 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/NLUU12100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e04fbefe8cdf79c623835b788478798763e211337b0f2c5426e13a99b769c81. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/NLUU12100039.
Sounds for Meditation of Thunderstorm and Beach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4975507bc808905989b19fbe88cb192b260d8b40da44d1fc7c61b7285761f0. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/NLUU12100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354a57a955a9e7bbc899dbb3930c4302f8c7b4f8c6fa9e6ff6c4cfa2c421e7a7. 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/NLUU12100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fd7644bbffa44473e7d91f27a9ae50b1a22dfd6db445f5d381f887b385a793. 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/NLUU12100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bd875be23b3f4eeec3e52e6044ff83dd0f446aad3130d794e16d4eed6173c5. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/NLUU12100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8fcecd9e5a822c3e0b29ec207297b1ec4e299f15b9d444511fd5668c8e739e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLUU12100254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf3eab033fc402c73e1c0dbef11c6b57c0f161fddbc8bcb9bcc6c442f4fa03e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/NLUU12100463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf534a108f703b27323f77c781cc90006d8dd750a5feb6f7de04039e5269766ab. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/NLUU12100493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca5f5da0a449d87c5a0485c70a36ea49beaef10568e4e1c93115f92b6bb6310. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLUU12100494.
Crackling Fireplace with Wind and Rain in Cabin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77de583f25d22115b412207ef6d70211a405e68dc0273b0bc826b93d5b9f1712. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLUU12100495.
Mindfulness Rain on Cabin with Fireplace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3c0857fed7e1d9311927ec83c9c6e642b067369ecb774e42088b5f99f42938. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLUU12100496.
Crackling Winter Fireplace and Stormy Wind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b66fba0535ed98d42f3ad89aa627fef5a1a331544f8852cbca9148f0e23932. 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/NLUU12100497.
Rain on Cabin and Fireplace Crackling Noise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d708ebef29bf0b7e0d5b73f9258d26e53327adc278c3ac68ea8daf358a7937. 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/NLUU12100498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5656a831b9941dc2c217aa0f516e3bada52b8d03ae252d9ecaf8a5354f44d592. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NLUU12100499.
Relaxing Crackling Fireplace with Wind and Rain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4587462af0a4dce686aa064da2dd9ece6819f9b3d101dd837b665c6e2cea5a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NLUU12100500.
Burning Firelace Sound with Wind and Rain Outside
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba998e883d25eacf1b2605e23a708fde316a8c67a97053b77500bfffb06703ba. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NLUU12100501.
Sleep Sounds of Wind, Rain and Fireplace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a54d1311cf8efe92fdd628735972875fba11191f16ccb24fc72634027bca03e. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/NLUU12100502.
Crackling Fireplace Noise with Cabin Wind and Rain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352931185c579940a5ddc512aae53e19f798b84a5157f6005bb5775011998b6a. 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/NLUU12100503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f800769c9654b309eaaaf861971d3bf13d31ef304e0ffa8e753bfa28529a04. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/NLUU12200052.
Winter Cabin, Pt. 2 - Fireplace, Wind and Rain