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 0x4c7109b8d122dc34b7d7dadc26da29a4a9cc500b3aa7dc8585c9eb8657b09097. 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/31afe299-9560-46cd-b803-eed1efd940e8.json and https://artists.proofprofile.net/proofs/artist/31afe299-9560-46cd-b803-eed1efd940e8.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 0x9493d37310d58da2ec991e43978edc96a5a726a2fb9ea0fb1aa3e5cbaa8ce0ff. 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/SE5752112052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d2caa940c04b36ce1202a27d7e762676773dd436c5cdbcd285c59e1257c046. 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/QZP7F2503066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71765978f7efd6bc7cf01317a510c065891bf0fc50ef0bce95accb8d47575292. 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/QZP7F2503067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282eb4633107d0b12eb736fe5fa68de7d804e8442912d830c3c384993a1806c3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZP7F2503068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6de1baa889311ecb8b1c15c22324d75e4f30cf4b4c4a63d135c8f1203fa570. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZP7F2503069.
Soothing Music for Turning Points in Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370da5118b4160c6ae65abce54be0114bf259ac45515126f9b562d9c9fda3d13. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZP7F2503070.
Relaxing Instrumentals for Focus and Peace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3287b257d55ed7da5264354c2de6555104398943057a1fcbf42235beeb289b84. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZP7F2503071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47463ac5b0648ca492368aa5fa9428407918820f9dfebbb4452a1e9b6459096e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZP7F2503075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4d06b57d349f7c38bbd1f0e40ab8584e3ab6188e49d50c3eb927493f97f160. 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/QZP7F2511321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065f41687e518c80c4c4f429576905b64320dff35318dfc7b90c6f99bebe6302. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZP7F2511322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42a1409de5b87cf6b3d18a288894ff04577dd895a6b080bb8735520a93acafb. 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/QZP7F2511323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5399674ad4fdb73b1ec7821768d5bfdf146e7c2b1fc6f3d85296e14a05884a99. 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/QZP7F2511324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f419d5e4433396b18083b1af462a8dcd5f30e171cabdc53014225c4be013c. 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/QZP7F2511325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f8df178af96881a4ff7af8e24a81f9d8efead6d7bfe6e0ed4f225f1809600c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZP7F2511326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a0f0250e60bb8a6a69d5a563cda6d046045cabf4e33e68b8d97712a72f9de9. 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/QZP7F2511327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac02a3fed02723e641449d814e38d80f3550b7ae0531a4f91d1ae9f19b10078. 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/QZP7F2511328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ea6efafd98d5d2a8fea806eb013addb6216c1058349a96130b0cc98998495c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZP7F2511329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289aa16d2f5a10edd573d236dd5819e6958d88a326360491c5cc2abf051b6699. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZP7F2511330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59616a0fbcd8c91acd794831dedd819e21aded41a054f191f16a1d100b4cf0f9. 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/QZP7F2511331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275e5cd53c2caf26a271d07c36acbd8359ed4a31241ae3bf2cd61246e660807c. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZP7F2511332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd085c8eaf07e6d317f6f76a9e5004903482779f6771f3589db035861a44976. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZP7F2511333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38213a509b7960ccf3ca072bda6d145bb84f8b359fa323d8d0fc49d5d5d90beb. 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/QZP7F2523623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc255e07e3fd72bd193e092fa52f9e50943663faf983449907050e82374d41560. 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/QZP7F2523625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeae243ad7905f9f1b1063d5a13c2df5bdeb2030c98708fb05095de5ab9c228a. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZP7F2523626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccffdce86b969dbfec0718731f2e18c19b505787dc54d9a3bac58913429ee3c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZP7F2523627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21765a6e9a19a95d38ad67b5b47d1f48e50bb332e6091f5dbc6dfb413bb8648f. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DE1AK5228831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa979322b71187532ae0eb99b42f0fbdd93d3c6cdc8239a5c8273e65df9c4c8e0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DE1AK5228835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6681c9d065dd0cfcdbcb58658f24d633540da418269e565a602deb17c76f2d92. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DE1AK5228837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955d8d20c352452a183724c697e7ddc85875182ac73af8d784a71f7101080770. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/DE1AK5228838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed95d0ad2eeb93d157c2f0b6f4f0c3f4228fca0c4ae86e14e6fe0a43b8d209ce. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZP7F2522532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c0ce95977ba8e1d61b812e2e023ede69be752b024f7d67256760ea0249ad8d. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZP7F2522540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa012ad2dab6888742073ef5b9d3a8f46d5c6d4038eb330f3751d1a972de3aecb. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZWDD2471915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae34536437599dab0d031fb0f80b48d5d59c49b16c58b45cff864f47fe07969. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZWDD2471969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9d4510fb8044e3dfef66c9fcec6d130b11807bcddb22cc8613e53ea5382d53. 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/DEXN92337261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445d94edb7d37bc55c1dcb8abaa2cee414413cca57aba8ef03968af97c27379c. 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/DEXN92337263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c70744f40cdba9be2ad5bd5da3365cf63d77f16f9e05ae913a8da8bc084c60. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DEXN92337265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd72d51074014fb61da3b4b2c1839b9d1fb39a9fecf96fb96c2c1da067fd3a9f. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/DEXN92337267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160d9ef53620cffec42b942e678077423cd007ea75ba3eac65005efbf7e73259. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEXN92337269.