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 0x8012e44235ea561883c98b82500bb623b3e2aeac4c28cafce1cba83b7fc58a5a. 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/4636cd9e-2758-478b-9016-1c9582e9c8a3.json and https://artists.proofprofile.net/proofs/artist/4636cd9e-2758-478b-9016-1c9582e9c8a3.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 0xfe67a6cf0cfe58ca68b32f2eb0674346dea52fb1ba7412f3973c9698ae7bd9f9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BC4192200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2013db7cb1306c3fbfbc66b0f7f186a556a80d02d546822e527b9f9b0c977595. 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/BC4192200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab061c3c769c6bd097457d98f5f72f275d152fa2a7c1e5f99a134505b78f290. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/BC4192300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8877a09fd746bc4331db7d641f3d60dd03822ddf220d5f3bd08b5b68cc458afb. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BC4192300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe714bda09b71aee73281d09a34a07628b1dbd1fd8170cbead83c3ccadc58a55e. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BC4192300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c2115489d52c681c46ddbd4d4877eec3643a92b7753fbbb43be7a1ca647e53. 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/BC4192300036.
Worship God in Grief (Cathedral Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddc3a237fdfa3a97d27de63a0db71192fa80a6da9efeccc6e94efc7805e2efa. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:47:34Z), 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/BC4192400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8b34762acaa9158e99bad7fdde2b654bf412058044efbe9b5b085282f0dde3. 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/BC4192400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53278cd237b601ecce5a43af0db7905507a6c722b81385fd37862523055703b2. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/BC4192400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84918b2bca00d0c086978f884294dbf359e3984ef2a0fc1187999f415e02b72b. 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/BC4192400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f2ee284d9515336dd74b89ffb15be74746c8ef33351368abd5faa412d906e4. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/BC4192400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7b3402b0885d61fbb2f7eb4f977643537515729eb46956bb9a51c70351ef5f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BC4192400028.
Sacred Chant of Space (Extended Version)
Divine Templar Chant: Strength in Tribulation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef83e318c70c13d8e8957b8c38890e31736a593ac0fbeb633c78d4a8a508ae1f. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/BC4192400033.
Gregorian Chant Templar in Cathedral (New Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900950c36a6e7314c015f6f2c1d665dbb808bee342133852346abdde7fa3ec4e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BC4192400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf75b455ccf380e7639853fd67e72380b3720e2abccc2735c73c0e5c42b1229. 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/BC4192487857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fb9639a81948190f86b356245bf9c5309277e023054815eda78110fe737fb8. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/BC4192487858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf43b517d85ea3f387919d501a5a55c8a5c564c865cb52117258548fe68b9478. 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/BC4192487859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84188e282eb355445ca222a0d51ca7b4c3ecca71b28e80e3e1197e16a83784e0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/BC4192487862.
Sacred Chant of the Wolf: Ly O Lay Ale Loya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070dab4cf651d413d0538fe030f0cbfa355b2a14dae38f52535d57cc9a689151. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:52:55Z), 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/BC4192487866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb396f121e35db02d78b45816bf2f7be439fcd0d15d863d6b549f357bd73e3a5b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BC4192487868.
Gregorian Chant Templar in Cathedral (Short Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c3ccf102ab7bd03aa43b003b3745505b6ea842f0e5abf8602c99c13b4d1e96. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/BC4192487869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2156fbbeb50632c0bf868401a8eb996ecd92b8bcbb16d7279e114e324ae82cfb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BC4192500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5da471183fed34124476dc80c29f5683c3536ac771a8aadff9559a82cb5cbb. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/BC4192500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccfbdc46d05c6a054d9c308d1920399ca0691ec7b188d325bac17d8e3f43fb1. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/BC4192500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5907ac3765f28f6f15653e0d2a8b4082a7506e52f0b846c4f90f8b38d83904ea. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BC4192500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0481f5e5331a6d03eeb3679b545ae671885bcc33abbe8177aa4db3c27cb89828. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/BC4192500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fee27ad4b96b4f0a889133ee9b1729bac85358af9bbf8c9bd4064435ca76d88. 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/BC4192500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0e64855d035a35f8f09060a95757fd1d23a5a4191b531adfcba47bd0c638be. 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/BC4192500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bd58e4b3456cc33638e577bbc8b83a79395ed0a1694e8e0f71d20d4386c3d9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BC4192500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce225bd8af9df807c2853e4ca8087407c448a152427a6e1596fa71f16cf25b6. 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/BC4192500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe843595be4a8fbdeae4efec30866195071383e6a81417d9a4107e2b92b1ba813. 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/BC4192500036.