Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. They are closely related to the oligochaetes, which include the earthworm, and like
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 0x8525010c3095096f5a08a599890f953379d6af263b08b284e3ed397750eb3cae. 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/2d9e00a7-8bc2-41a0-9f6f-62cf2afa74b8.json and https://artists.proofprofile.net/proofs/artist/2d9e00a7-8bc2-41a0-9f6f-62cf2afa74b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soundtrack To An Individual Emotion Picture Mindmovie
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 0xc21a60b320129ea59e99d32553a77ae40993c70d3a4f164a8fc05e9796052481. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CH7510900525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a9c992fa7d046f5007864d74ae8db47c0bbbc5c8efef483c18384e44c3dff8. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CH7510900527.
If We Get There One Day, Would You Please Open The Gates?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780fba1cda6aae7c56b198375179aa84047e5ba4d361f8e10abc8ca8cb031369. 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/CH7510900101.
If We Get There One Day, Would You Please Open the Gates?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe151a5109cb15628c3e0ed1ee6e50ebbbc1984fc36fbb296962d1b2fec0b8974. 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/CH7811818638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017326c85f384a4ee679ad1ca706be4542d04895483ceaa0dd0bad3eff9fa65d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CH7811818639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd25de19615006ba9f317277251768696dd9573d845b20b72e58b2ece164667e. 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/CH7811818640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037eb5583a777da3f330209dd3eaf0c4c3fa1af57383229e39a1072f4a78a263. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/CH7811818642.
If We Get There One Day, Would You Please Open the Gates? (Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf241efdee621218acffaa97b6ce2f1138737e58644ea4e3698f018a0a4bf1d76. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CH7812416530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34acbb6f142d838bcb9711321341b976c2704060fae32ad7b5b9e8da09e2286a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CH7812419581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d39ccbe842a859f75a2de83dbf06bb948cc1ee5fa19bc0759c7928e2bfa5c5. 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/CH7812409123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf241efdee621218acffaa97b6ce2f1138737e58644ea4e3698f018a0a4bf1d76. 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/CH7812416530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c24c14036710e2f6a7e23cec84c1dce9e293486ec213ed665d9ad4385838ea7. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/CH7812419525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571a6f15d0fce04ad52bfffae40a71b7f48abbdb123bff69beaa9110dc1ada48. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CH7812352560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99293881cb305ee02bac434d5f9a9507d42bdb7d79c7df165dfe02546491511c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CH7812413945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9631e39760de715699b1724a1c1ea2fc68e207d65737bfdde46c3c60dbe95e29. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/CH7812419580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34acbb6f142d838bcb9711321341b976c2704060fae32ad7b5b9e8da09e2286a. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/CH7812419581.