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 0x4f653d82be9a038600c98bf20494b191c50f1a67c00d9387efcab5232b77cb05. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04ae8020-6403-4799-8c21-4c0bf6adcea2.json and https://artists.proofprofile.net/proofs/artist/04ae8020-6403-4799-8c21-4c0bf6adcea2.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 0xb8ad5fe672d1f403fa8cf2746205364a82e3156d23bb20ab2157bfbfb8d641e3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BGA411201005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cfd36af69abdd1b0fae2fb8d7c96e74820ad6af331a0781e5c61fe843df73d. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/BGA411130103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547107362f330573b8553308b06802dc10868c7943d043c207eb8c3c848794b1. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BGA411201006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16058570c6096f8e4796a7cc7ac3abef5787e5912acb4a6dfa91b8eb5f29ef71. 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/BGZ411800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74b559f95f6e1ea2ad7d6d0aafd9803ab4a67740a6460ee4cfe486ac41dd65e. 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/BGZ411800347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200d05f8a55ae0817dbfb8d43763485889b6668552e265dc2952de4fa7043a7f. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/BGZ411800621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de0e689cd9ceabf2cece511ed95538ddf1c4f1356ac48862839bd3416818fcf. 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/BGZ411801809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8fa554eebc7e6d1f67a2c8f12ed83aac33b8cdf349f235cc29b9165694a7e6. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:10:39Z), 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/BGZ411802191.
SENKIZESSHOU SYMPHOGEAR G Character Song 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3deac37b509d662b2de12f46c601e379913bd551ef13273e3f7393cf636ee8. 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/BGA412000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99359eb5cbe4d9eda617a479565e05f9cd95b250b88014534fde3c767a1208a. 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/BGA261583329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605495f36750eb6d2e700c248f85ea54ad1a2fad54bc3555120f5bfa2b4d59fa. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:49:28Z), 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/BGA261583860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cff90ddb038b0ea236a59160b183ee996318951453e0463a6675b47b823c3e4. 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/BGA261583979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b43d8fc7a2fe4c6a20e7d4edae6fc01c19cb9c70af4ce0d7a42d05e477db144. 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/JPS801958380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e859bd145789417481b380c4313cdcd7491a8c4dcd5f87bbce69a862189a6af. 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/JPS801850134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f141cae8e2473ae802ee264a8f54b68da8dae8a30e77df3efde0f7fdc3afcea. 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/TCJPT2248549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1691978619534008fe6166739689e40b115788da50bdaabb16835e49ce1ad520. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/TCJPQ2108581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a4a886d9653310f9149a1ecfacd67c237775dcee7b7f6d66625ad7c84678f9. 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/TCJPT2248672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638478a081064b47e5bef41c166586b0f62ea8ac7111dcd428e68921c2aaddfd. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/AUXN21940733.
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